My Intellimouse Optical freezes when I use my KVM switch. One system is using Windows XP the other is using Windows 98. I nearly ever reboot my 98 system and it never has any problems. The XP system freezes randomly when I switch to the 98 system for a period of time. It doesn't always happen, probably 1 in 3, and the mouse never freezes on the 98 system, even right after it does on the XP system. It takes a reboot of the XP system to get it to work again. Any suggestions?