[Hampshire] Xearth and Ubuntu desktop

Hi all

For someone that knows, this should be an easy one....

I'm trying to get xearth working on Ubuntu - and I've almost managed it.
Essentially it's installed and runnning ok - except I can't see it. In
fact the only way I knew it was working ok was when I shut down and I saw it
for a split second before the machine powered down.

I conclude (perhaps incorrectly) that the image created by xearth was ok all
the time but it was underneath my desktop. However I'd already switched
off wallpaper. I can make it visible in a window with the -noroot option
but I want it as my desktop wallpaper. Presumably this is an easy one -
anyone any ideas?

Cheers
Rob