Consider the following scenario:

• On a Windows Vista-based computer, the screen resolution for the LCD screen is set to 1280 × 800 pixels.
• You run Windows Media Player in full-screen mode.
• You switch to TV mode.

In this scenario, the screen may become black.

Consider the following scenario:

• You are watching Live TV in Windows Media Center on a Windows Vista-based computer.
• You change the channel to a program that is being broadcast in a high-definition television (HDTV) format.

In this scenario, a green screen is displayed instead of the expected Live TV program.

Consider the following scenario:

• You use Windows Media Center to watch high-definition television (HDTV) on a Windows Vista-based computer.
• You have installed the 932968 hotfix on the computer.
• You do one of the following:
  • You switch the HDTV format between the 1080i format and the 720p format.
  • You open a different DVR-MS file.
  • You change the live TV programming to a different high-definition channel or to a different standard-definition channel.

In this scenario, the TV screen may appear as solid green, or it may appear as blocky pixels. This behavior continues until the next key frame is displayed.

Consider the following scenario:

• You watch live TV or a DVD in Windows Media Center on a Windows Vista Home Premium-based computer or on a Windows Vista Ultimate-based computer.
• You pause the live TV program or the DVD.
• You use the Start menu, a sleep button on the keyboard, or a Windows Media Center remote control to put the computer to sleep.
• You wake the computer, and then you try to continue watching the live TV program or the DVD.

In this scenario, you can view the video part of the live TV program or of the DVD. However, you cannot hear the accompanying audio.

You are using a computer that is running Windows Vista Ultimate or Windows Vista Home Premium. The computer is using an Italian (Rome) 730-megahertz (MHz) multiplexer (mux) that receives a Terrestrial Digital Broadcasting Services (DVB-T) format signal. The mux has an available “Seventh Channel” (LA7) private television channel. When you try to watch live TV on the LA7 channel in Windows Media Center, you hear audio, but you do not see video.

You cannot set up the TV feature after you upgrade from Windows XP Media Center Edition to Windows Vista.

Consider the following scenario. You have a computer that is running Windows Vista Ultimate or Windows Vista Home Premium. The computer receives digital cable by using a CableCARD. However, when you watch Live TV or Recorded TV in Windows Media Center, you may experience macroblocking or blocking artifacts. For example, square sections of the picture are not displayed correctly. These sections may appear to be missing, or they may appear as a single block of color. Additionally, the picture may appear distorted or pixilated. If you rewind the video, the distortion appears again at the same location in the video.

This problem is most likely to occur when one of the following conditions is true:

• You watch or record TV from a high definition (HD) channel.
• The motion of images on the screen is very fast.
• Scenes changes occur quickly.

The information in this article applies to the following configuration(s):

• Catalyst Control Center
• ATI Radeonâ„¢ Xpress 1250 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition
• Windows XP Professional
• Windows XP Home Edition
• Windows XP Media Center Edition
• Windows XP Professional x64 Edition

Symptoms:
Connect a TV and enabling it in the catalyst Control Center under “Adjustments” “Automatic Settings” check box is still checked and the Underscan/Overscan slider is having percentage and set in the middle of slider.

The information in this article applies to the following configuration(s):

• Catalyst software suite
• Radeonâ„¢ HD 2900 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
Using live TV on a system containing an ATI HD2900 XT product and running the Windows Vista Operating System may result in the application failing.

When you start a Windows Vista-based computer that has more than one TV tuner, you receive the following error message:

Windows Media Center Receiver Service stopped working and was closed. A problem caused the application to stop working correctly. Windows will notify you if a solution is available.

Also, the Windows Media Center Receiver service (Ehrecvr.exe) may stop unexpectedly.