When an administrator tries to provide remote assistance to a standard (non-administrator) user in Windows Vista, the administrator unexpectedly receives a black screen in the Remote Assistance session.

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

• WinDVD8
• Radeonâ„¢ Xpress X200
• Radeonâ„¢ Xpress X200M
• Windows Vista 32bit Edition
• Windows Vista 64bit Edition

Symptoms:
Using WinDVD8 to play a DVD title results in the DVD menu screen appearing black

When you try to start a Microsoft Windows XP-based computer after an unsuccessful upgrade to Windows Vista, the computer does not start. Instead, a black screen appears together with a blinking underscore.

You may experience this issue if the computer uses a third-party boot manager program such as PowerQuest BootMagic or GRand Unified Bootloader (GRUB).