I just upgraded my desktop over the weekend. I know I shouldn't have changed so many variables at once, but I upgraded to Vista SP1, upgraded the chipset drivers, and various other things.

My mouse has suddenly started double-clicking on things. It's connected through a KVM (an iogear 4-port USB/DVI), but the problem doesn't affect the other computer (Windows 2003 x64) also plugged into the KVM.

Before I start messing about with the cables, does it sound sensible that installing the new Intel chipset drivers might have hosed it?

Frankly, I'm considering dusting off and nuking the site from orbit (with Vista SP1 x64), but I thought I'd ask...