My mouse had been freezing up every so often on my eMac. It was usually resolved after a hard reset. Now the mouse is frozen in the upper left corner after restart (at least 3 times). Bought a new mouse ... same thing. Tried every posssible USB config. I could think of. Disconnected all non-vital hardware ... still no go. Tried keyboard and OLD mouse on 3 different Macs at work, and they worked fine. Any ideas or suggestions?