I have tried both a Mighty Mouse and a Microsoft mouse, and I get this symptom on my new mac mini. The mouse will not track, but the buttons respond. Even unplugging the mouse and plugging it in again ...

A few tweaks in Windows’ settings can ensure your computer’s mouse pointer stays visible, so you’re not left chasing a ghost on your screen.

OK, I've been having this problem for a while now, and I'm sick of it. Here's the setup:<BR><BR>XP Corporate (shht!)<BR>All windowsupdates except SP1 applied.<BR>ECS Motherboard (unsure of the exact ...