Don't know why I didn't think of that, but it didn't work. This is irritating.
I used to have this problem a while ago, but it eventually disappeared. It came back once I started using themes. I suspect it's a CoreUI issue or something. I disabled it, but need to reboot, which I'll do in the morning, it's late and Folding@Home wants me to get off the compy so it can cure more diseases.