Evening, guys and gals. I've done a bit of searching for this topic on both these forums and google, but I've only been able to find topics that are merely "close", and following the instructions given there have yielded no results. Basically, what's happening is, from time to time (usually every minute or so) my cursor will randomly jump around and hug the sides of my computer screen. I can move it vertically, but any attempt to move it any other way either doesn't work or causes it to jump around again. It's just recently started doing this (about two or three hours ago; I was using Photoshop with my Graphics tablet), and it even moves around when my mouse is unplugged or disabled, and disconnecting from the internet changes nothing. I've tried updating my drivers, even uninstalling them and letting windows reinstall the basics ones. I have uninstalled my Tablet's drivers as well. Both AVG and SpyBot turned up blank when I had them run scans, and I've gone through every option in the Mouse menus, adjusting speed, precision, etc. Computer is a desktop. Windows Vista Home Premium 32bit USB Ball Mouse.