How to check Device Manager?
Step 1: Click "Start" on the bottom-left corner. (Windows logo on Vista / Windows 7)
Step 2: Click right-button on "Computer" ("My Computer" on Windows XP)
Step 3: Click on "Manage" ("Device Manager" on Windows XP)
Step 4: Double click "Device Manager"
Step 5: Double click "Sound, video and game controllers"
Step 6: Check whether the driver of TV tuner has been properly installed. If yellow
Question Mark or Exclamation mark appears, the driver is not well installed.
Please re-install.
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