Created attachment 306816 [details] screenshot I get scads of yellow "guide lines" when hovering over the graph area. They accumulate as I move around, though the comparison box seems to go away correctly. Screenshot attached. Don't see this on Windows or Mac. Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9b4pre) Gecko/2008030104 Minefield/3.0b4pre Running Ubuntu 7.10 on NVIDIA, binary drivers, ask me anything!