diff --git a/desktop_env/desktop_env.py b/desktop_env/desktop_env.py
index 543c17d..096dc54 100644
--- a/desktop_env/desktop_env.py
+++ b/desktop_env/desktop_env.py
@@ -101,7 +101,7 @@ class DesktopEnv(gym.Env):
             provider_name: str = "vmware",
             region: str = None,
             path_to_vm: str = None,
-            snapshot_name: str = "init_state",
+            snapshot_name: str = "snapshot",
             action_space: str = "pyautogui",
             cache_dir: str = "cache",
             screen_size: Tuple[int] = (int(os.environ.get("SCREEN_WIDTH", 1920)), int(os.environ.get("SCREEN_HEIGHT", 1080))),
@@ -117,7 +117,7 @@ class DesktopEnv(gym.Env):
             provider_name (str): virtualization provider name, default to "vmware"
             region (str): the region for allocate machines, work for cloud services, default to  "us-east-1"
             path_to_vm (str): path to .vmx file
-            snapshot_name (str): snapshot name to revert to, default to "init_state"
+            snapshot_name (str): snapshot name to revert to, default to "snapshot"
             action_space (str): "computer_13" | "pyautogui"
             cache_dir (str): cache directory to cache task-related stuffs like
               reference file for evaluation
@@ -265,7 +265,7 @@ class DesktopEnv(gym.Env):
                     self.current_use_proxy = task_use_proxy
             
             if self.is_environment_used:
-                logger.info("Environment has been used, reverting to snapshot {}...".format(self.snapshot_name))
+                logger.info("Environment has been used, reverting to snapshot: {}...".format(self.snapshot_name))
                 self._revert_to_snapshot()
                 logger.info("Starting emulator...")
                 self._start_emulator()
@@ -402,6 +402,7 @@ class DesktopEnv(gym.Env):
 
         if self.action_space == "computer_13":
             # the set of all possible actions defined in the action representation
+            logger.info(f"======executing here======{self.action_space}========================")
             self.controller.execute_action(action)
         elif self.action_space == "pyautogui" or self.action_space == "claude_computer_use":
             if action in ['WAIT', 'FAIL', 'DONE'] or (type(action) == dict and action.get('action_type') in ['WAIT', 'FAIL', 'DONE']):
@@ -411,6 +412,8 @@ class DesktopEnv(gym.Env):
                 if type(action) == str:
                     # Fix PyAutoGUI '<' character bug before execution
                     fixed_command = _fix_pyautogui_less_than_bug(action)
+                    logger.info(f"======executing here======{self.action_space}========================")
+                    logger.info(f"Fixed command: {fixed_command}")
                     self.controller.execute_python_command(fixed_command)
                 elif type(action) == dict:
                     # Fix PyAutoGUI '<' character bug before execution
diff --git a/lib_run_single.py b/lib_run_single.py
index f159fc9..2262ea5 100644
--- a/lib_run_single.py
+++ b/lib_run_single.py
@@ -13,30 +13,44 @@ def run_single_example(agent, env, example, max_steps, instruction, args, exampl
     runtime_logger = setup_logger(example, example_result_dir)
 
     # Reset environment first to get fresh VM IP
-    env.reset(task_config=example)
+    # env.reset(task_config=example)
+    # logger.info("=======Environment reset completed=======")
 
-    # Reset agent with fresh VM IP (for snapshot reverts)
-    try:
-        agent.reset(runtime_logger, vm_ip=env.vm_ip)
-    except Exception as e:
-        agent.reset(vm_ip=env.vm_ip)
+    # # Reset agent with fresh VM IP (for snapshot reverts)
+    # try:
+    #     agent.reset(runtime_logger, vm_ip=env.vm_ip)
+    # except Exception as e:
+    #     agent.reset(vm_ip=env.vm_ip)
     
-    time.sleep(60) # Wait for the environment to be ready
+    # time.sleep(10) # Wait for the environment to be ready
+    
+    # get initial observation
+    logger.info("Getting initial observation...")
     obs = env._get_obs() # Get the initial observation
+    logger.info("Initial observation obtained.")
     done = False
     step_idx = 0
-    env.controller.start_recording()
+    if getattr(args, 'enable_recording', False):
+        env.controller.start_recording()
     while not done and step_idx < max_steps:
+        logger.info(f"Step {step_idx + 1} prediction...")
         response, actions = agent.predict(
             instruction,
             obs
         )
+        logger.info(f"Response: {response}")
+        logger.info(f"Actions: {actions}")
+        
+        logger.info(f"Executing actions...")
         for action in actions:
             # Capture the timestamp before executing the action
             action_timestamp = datetime.datetime.now().strftime("%Y%m%d@%H%M%S%f")
             logger.info("Step %d: %s", step_idx + 1, action)
+            
+            logger.info("执行动作中...")
             obs, reward, done, info = env.step(action, args.sleep_after_execution)
-
+            logger.info("动作执行完成。")
+            
             logger.info("Reward: %.2f", reward)
             logger.info("Done: %s", done)
             # Save screenshot and trajectory information
@@ -69,7 +83,8 @@ def run_single_example(agent, env, example, max_steps, instruction, args, exampl
     # Log task completion to results.json
     log_task_completion(example, result, example_result_dir, args)
     
-    env.controller.end_recording(os.path.join(example_result_dir, "recording.mp4"))
+    if getattr(args, 'enable_recording', False):
+        env.controller.end_recording(os.path.join(example_result_dir, "recording.mp4"))
 
 
 def setup_logger(example, example_result_dir):
diff --git a/quickstart.py b/quickstart.py
index b4240d3..009d4ba 100644
--- a/quickstart.py
+++ b/quickstart.py
@@ -1,5 +1,11 @@
-from desktop_env.desktop_env import DesktopEnv
 import argparse
+import logging
+
+from desktop_env.desktop_env import DesktopEnv
+
+logging.basicConfig(
+    level=logging.INFO,
+)
 
 example = {
     "id": "94d95f96-9699-4208-98ba-3c3119edf9c2",
diff --git a/run.py b/run.py
index 75148e3..e8844f6 100644
--- a/run.py
+++ b/run.py
@@ -86,6 +86,7 @@ def config() -> argparse.Namespace:
     parser.add_argument("--screen_height", type=int, default=1080)
     parser.add_argument("--sleep_after_execution", type=float, default=0.0)
     parser.add_argument("--max_steps", type=int, default=15)
+    parser.add_argument("--enable_recording", action="store_true", help="Enable video recording (disabled by default)")
 
     # agent config
     parser.add_argument("--max_trajectory_length", type=int, default=3)
@@ -94,10 +95,10 @@ def config() -> argparse.Namespace:
     )
 
     # lm config
-    parser.add_argument("--model", type=str, default="gpt-4o")
+    parser.add_argument("--model", type=str, default="gpt-4-vision-preview")
     parser.add_argument("--temperature", type=float, default=1.0)
     parser.add_argument("--top_p", type=float, default=0.9)
-    parser.add_argument("--max_tokens", type=int, default=1500)
+    parser.add_argument("--max_tokens", type=int, default=16384)
     parser.add_argument("--stop_token", type=str, default=None)
 
     # example config
@@ -147,6 +148,8 @@ def test(args: argparse.Namespace, test_all_meta: dict) -> None:
         action_space=args.action_space,
         observation_type=args.observation_type,
         max_trajectory_length=args.max_trajectory_length,
+        screen_width=args.screen_width,
+        screen_height=args.screen_height,
     )
 
     env = DesktopEnv(
@@ -155,11 +158,31 @@ def test(args: argparse.Namespace, test_all_meta: dict) -> None:
         action_space=agent.action_space,
         screen_size=(args.screen_width, args.screen_height),
         headless=args.headless,
-        os_type = "Ubuntu",
+        os_type = "Windows",
         require_a11y_tree=args.observation_type
         in ["a11y_tree", "screenshot_a11y_tree", "som"],
     )
 
+    # get actual VM screen size after environment initialization
+    try:
+        actual_screen_size = env.vm_screen_size
+        if actual_screen_size and 'width' in actual_screen_size and 'height' in actual_screen_size:
+            actual_width = actual_screen_size['width']
+            actual_height = actual_screen_size['height']
+            logger.info(f"Actual VM screen size: {actual_width}x{actual_height}")
+
+            # update agent's screen size if different
+            if actual_width != args.screen_width or actual_height != args.screen_height:
+                logger.warning(f"Screen size mismatch! Expected: {args.screen_width}x{args.screen_height}, Actual: {actual_width}x{actual_height}")
+                agent.screen_width = actual_width
+                agent.screen_height = actual_height
+                # replace in system message as well
+                agent.system_message = agent.system_message.replace(
+                    f"({args.screen_width}, {args.screen_height})",
+                    f"({actual_width}, {actual_height})"
+                )
+    except Exception as e:
+        logger.warning(f"Unable to get actual VM screen size: {e}")
     for domain in tqdm(test_all_meta, desc="Domain"):
         for example_id in tqdm(test_all_meta[domain], desc="Example", leave=False):
             config_file = os.path.join(
@@ -204,8 +227,8 @@ def test(args: argparse.Namespace, test_all_meta: dict) -> None:
                 )
             except Exception as e:
                 logger.error(f"Exception in {domain}/{example_id}: {e}")
-                # Only attempt to end recording if controller exists (not Docker provider)
-                if hasattr(env, 'controller') and env.controller is not None:
+                # Only attempt to end recording if controller exists (not Docker provider) and recording is enabled
+                if args.enable_recording and hasattr(env, 'controller') and env.controller is not None:
                     env.controller.end_recording(
                         os.path.join(example_result_dir, "recording.mp4")
                     )
@@ -217,7 +240,7 @@ def test(args: argparse.Namespace, test_all_meta: dict) -> None:
                     )
                     f.write("\n")
 
-    env.close()
+    # env.close()
     logger.info(f"Average score: {sum(scores) / len(scores) if scores else 0}")