I just reinstalled openSUSE 11.3 KDE 4.5, and my mouse pointer keeps auto-clicking. It's weird because it is not even happening 100% of the time, just _most_ of the time. I am using a touchpad, and I have disabled tapping.

I had this exact same issue with Kubuntu 10.10 yesterday before I removed it. I am currently on Windows 7 and all seems well, so it is probably is a Linux software issue.