I've actually had something similar happen on two occasions. One time was not on AC, it was on CS 1.0 and it was a roller mouse with a long female hair wrapped in it. I don't think anyone uses a roller mouse anymore, Sooooo....
If it's what I think it is, I believe you're going to feel silly. I did when I screwed with my settings for 20 minutes and finally figured it out.
....Is your touch-pad disabled? I ask because you said it's a fresh install, you may have forgot to disable it?
If it's what I think it is, I believe you're going to feel silly. I did when I screwed with my settings for 20 minutes and finally figured it out.
....Is your touch-pad disabled? I ask because you said it's a fresh install, you may have forgot to disable it?