I just plugged in an HP Photosmart C4680 printer by USB and it caused some funky stuff to happen to my Mint 12 installation. My startup now includes a blue screen that lasts for a second, then glitchy graphics for another second before returning to normal. My icons all changed styles, and even though it is set to OFF, the bottom panel is showing again. I have Radeon graphics and I am using the 11-12 driver from ATI so some bugginess is the norm, but things got a lot weirder since I tried to add this printer. Any ideas why this might be happening or how to fix it?