Since yesterday, my 770 has been experiancing some graphical oddities. Basically a lot of graphical elements are "missing".

- Buttons do not draw, but the text on them does, and they work.
- The side bar has no background (appears white).
- Menus have no border or background (white).
- Home applets have no borders or background, their contents appear directly on the background.
- Window borders do not draw (white).

I have not installed any extra themes, I have tried changing the theme, even deleting the entire ~/.osso directory, rebooted several times, etc.

The problem did not coinside with any install or settings change.

Any ideas?