Hello, I sporadically run into an issue where the background of the slingshot menu becomes 100% transparent... the only way I have been able to get it to change back is by rebooting. i have a nvidia gtx470 using NVIDIA binary driver - version 346.96 from nvidia 346 (proprietary, tested). i have not noticed any sort of pattern or reasoning behind the sudden change but it makes everything really hard to look at anything in the menu. everything else seems to work just fine.
