I am currently controlling two Vista x64 boxes with a KVM switch. The switching has worked fine through several OS changes in recent months, including a previous incarnation of two x64 boxes that I have now. I recently had Windows 7 on one (I'll call it computer A), but went back to Vista. Since my last reinstall of Vista on computer A, when I switch to it, the mouse doesn't work for about 20 seconds or so (but the keyboard does). Switching to computer B is no problem, the mouse works immediately.
These computers are running the same OS, one works properly and one doesn't, but they both worked before. I don't get it. What would cause this problem?
I was going to delete this question, but I see someone has marked it as a favorite. Interesting. Anyway, I still don't know what the problem was, but it went away when I put Windows 7 back on computer A.