Halfway through browsing, Safari suddenly erased all the "Favicons" (the ones that replace the blue blobs in the address bar, history & bookmark screens/menus) and refuses to refresh them or get new ones from websites I visit. This includes places like MR and BBC/BBC News. I know these sites have favicons because they load fine in FireFox. Also, I installed the new DivX plugin recently (from Stage6.divx.com) and now whenever I load something that requires the DivX plugin, Safari suddenly quits. How can I remove the DivX plugin from my system?