help please

[muletopia]

Hello
Last night i tried to set a deep space thumbnail at the thread title as my Ubuntu desktop background. This resulted in a small picture in the centre of my screen and the destruction of all the Gnome desktop icons. They are each replaced by a white box with a black z shaped line.

I googled and tried many suggestions to no avail.
Help to restore the original icons would be much appreciated.

Cheers
Chris

[muletopia]

After some reading it appears that what is clobbered is the Gnome desktop.
I suspect that it is not loaded at start up.
Many posts on Google suggest ways of fixing this, I have tried many to no avail.
So I would really like guidance from a Linux/Ubuntu guru.

Chris

[ZeroID]

Is there a 'Repair' option on the Install ?
Otherwise reinstall ( after copying off any personal files etc if any and just in case ).