I'm having a weird problem. My mouse cursor sometimes moves on it's own across the screen. It usually goes toward the lower left corner or the upper right corner. I can't seem to do anything to make it stop. After this started on my normal mouse (a bluetooth Intellimouse Explorer) I tried a wired Intellimouse and the problem is still happening. I also tried new batteries. Nothing has helped. Most of the time it is fine but sometimes it just takes off. It can make it very hard to pick things! I have to wait until it stops moving and then use it until the problem pops up again. I'm on a laptop with Windows XP SP2. Any ideas?