We both have optical mice and the same thing happens with Apple's and Microsoft's mouse. It's only an occasional thing so I guess we were just wondering if it was our system or the mouse. Probably the mouse. Mine's on a keyboard pull-out shelf so it's possible that the mouse picked up some vibration or a bump. It's no big deal but nice to know it happens to others.<br><br>
Old farts, the hidden caulk of civilization. Jim Atkinson