Has anybody here that has a MX1000 mouse had any problems with the pointer being very erratic and jittery? I started experiencing this a few weeks ago, and it just kept getting worse and worse. I checked the Logitech forums and found out that a lot of people are having this problem. There are new drivers that are supposed to solve this problem, but that didn't work for me and a lot of others. Anyway, I called Logitech this morning and after a few questions, they are sendiing me a new mouse to replace the one I have. The were very easy to deal with and tried to be helpful. Just thought I give them a pat on the back. It remains to be seen if this problem is fixed though, as I have seen that even some of the replacement mice are defective. I guess I'll fiind out in a couple of days.