A high definition audio device may no longer work after you resume Windows Vista from sleep or from hibernation and then restart the computer.
http://support.microsoft.com/kb/929685 In Windows Vista, you cannot access any resources on a remote VPN server after you switch a network connection from one network adapter to another network adapter and then dial a VPN connection.
http://support.microsoft.com/kb/930163 You receive a Stop 0x9F error when you wake a Windows Vista-based computer that is connected to an IEEE 1394-based device
http://support.microsoft.com/kb/929762 When you run Wusa.exe together with the /quiet option to try to install certain software packages on a Windows Vista-based computer, the installation fails.
http://support.microsoft.com/kb/929761 You may not receive audio in the desired language when you use Windows Media Center to view television in Windows Vista.
http://support.microsoft.com/kb/929615 Source: Bink.Nu