The Problem:-

I’m watching a TV show, and press stop,instead of normal screen with default menus I see a  black screen – nothing is being displayed. My TV tuner card is fully updated.My graphic card is updated and it has no problem if I watch movies with Power DVDs or,Windows Media Player.

Cause:-This may be due to bug of June 2008 Cumulative Update for Windows Media Center for Windows Vista (KB 950126.Re:http://support.microsoft.com/kb/950126).

Resolution:-

Uninstall KB 950126 to fix the problem.