Hi guys, I used to work with an old wheelmouse and recently changed for an Optical one, but now for some reasons, the cursor simply jumps to the corner of the screen once in a while. I think(?) I have the latest driver for it and I really don't understand what could cause this problem. (downloaded MouseWare Version: 9.79.1 on the Logitech site) Mouse: Logitech® Optical Mouse Black (currently plugged on the USB channel, but does the same thing on the PS/2 one so I guess that's not the problem.) Thank you in advance, Your help is very appreciated, Gab.