http://blogs.technet.com/brad_rutkowski/archive/2007/08/07/two-hotfixes-now-released-to-improve-performance-compatibility-and-reliability.aspxhttp://support.microsoft.com/?kbid=938194 This update resolves some compatibility issues and reliability issues in Windows Vista. By applying this update, you can achieve better reliability and hardware compatibility in various scenarios. This updateenCommunityServer 2.1 SP1 (Build: 61025.2)