I want to get the mouse in Vista working like it is in XP. Microsoft changed it in between OS's, for what reason, I have no idea, but I went from having no problem using a mouse for hours on end to ...

It has Windows XP SP3, and it is set to auto update windows. It has Bitdefeneder 2011 installed and scheduled to update then scan daily (at 0001) Everything was working fine earlier today. Suddenly ...