Microsoft released a patch recently for the xp operating system, this patch should speed up your windows OS. http://www.microsoft.com/downloads/... Jim R

Not so sure if they are the same but they had one in December: "Computers that are running Windows XP Service Pack 2 and that are equipped with multiple processors that support processor power management features may experience decreased performance" Bryan

You guys do understand that a dual core processor and "multiple processors" aren't the same thing right? Multiple processors means "more than one processor". A dual core processor is still a single unit. I know Windows sees and reports a dual core like there are two processors, just as it does with the hyperthreading processors. But this is not multiple processors. I didn't read all the way through but Bryco's link has the following note: Note This problem also applies to x64-based versions of Microsoft Windows Server 2003. However, this article and its associated private hotfix are not intended to resolve timing problems in games and other applications that run on AMD dual-core computers. For more information about performance issues on dual-core computers, click the following article number to view the article in the Microsoft Knowledge Base: 909944 (http://support.microsoft.com/kb/909944/) Game performance may be poor on a Windows XP-based computer that is using a dual-core processor