Sometimes (every few days) the taskbar on my second monitor stops showing the "buttons" like "buttons" and it's just black text on the bar. I have to restart DisplayFusion to fix it. Weird bug or something I'm doing wrong?

Oh, yes. Same for me (http://www.binaryfortress.com/Forum/index.php?topic=1071.0).
Can you reproduce thus effect or it happen just "sometimes"?