Flickeringpanels after update to 9.10

[valrond]

I was using 9.04, I updated to 9.10, and after a few hours of downloading and installing, all I get when I enter the desktop are two flickering panels, they appear and disappear, no shorcuts or menus or anything there, and the mouse cursor changes between normal and wait.

I have reverted to 9.04 using a previous backup, but I'd like to use 9.10.