This is really freaking me out! My cursor will randomly move up, down, left, or right without me moving my mouse! Sometimes it will move an inch and sometimes it will move four inches or more! What he heck is going on? Is anyone else having this problem with Windows XP. I do not have a optical mouse. This is really driving me nuts and I'm almost to the point where I'm going to call Dell tech support. I really don't want to cal ltech support.