I run Win2000 Pro/SP4 on an Asus A7V333 V1.02, with Bios 10.16. AMD XP1900+, 2x 256MB Corsair PC2700 RAM (CAS 2.0), Matrox G550 32MB graphics card, 2x 80GB Seagate Barracuda IV. Via Hyperion 4-in-one V4.48 drivers. Standard Win2000 mouse and KB drivers. I have Norton AV 2002, Agnitum Outpost Pro 2.0 Firewall, CPUidle and Diskeeper Workstation running in the background at all times. Regularly my mouse freezes, pulling the KB with it and only a reset brings the PC back to life. Current mouse is an old Logitech Mouseman+ on PS/2. I had the same problem before, using an MS Intellimouse Explorer 3.0 (corded-optical), as well as with the Logitech MX700 (cordless-optical), trying them both on USB 1, USB 2 and PS/2. I have used all sorts of drivers for the mouse, both from MS and Logitech, but whatever I try, that s...mouse freezes. Is it possible that the VIA drivers cause this problem and could I maybe re-install from scratch, WITHOUT these VIA drivers? This problem has been bugging me for over 3 months now, and other than replacing the MoBo, I don't know what to do. A similar thread was open a while ago, but that did not bring any solutions. Your help will be greatly appreciated.