I got a new Logitech MX Revolution today, and I plugged in the USB dongle, and turned on the mouse, and everytime I move the mouse, the cursor shoots over to the right hand side of the screen. I thought maybe I was having a conflict with an existing install of the Logitech control center, but it doesn't matter what mouse I plug in, I still have the same problem. i've tried both the mighty mouse, and the other Logitech mouse I have, and I get the same result. My mac is totally useless, I can't even navigate enough to turn off USB Overdrive in case that is an issue to. Can some help please? I sit here looking at a useless $2500 paperweight. :-( Edit: I have booted into safe mode and removed both USB Overdrive and the Logitech Control Center, and I still have this mouse cursor issue after reboot. But while I"m in safe mode, my mouse works just fine.