I'm stuck at the moment with an ubuntu that boots into an unusable white screen after upgrading from 11.10 to 12.04.

I've tried booting into safe X mode but it just throws me back to the safe menu every time. Restore previous graphics driver, use default graphics configuration and set up new graphics configuration all don't work either.

I've tried various methods of resetting the graphics from the command line, but none are working due to unmet dependencies. These cannot be fixed by doing the normal "apt-get -f install" because its saying there is a dpkg error in var/lib/dpkg/status (blank line relating to skype-wrapper). I haven't been able to find any other way to fix the dependencies yet.

Can someone please give me some advice on what to do, I really don't want to go the re install route.