Hi, I need help if someone can

I got problem with my desktop, I'm running windows server 2003
and after boot is finished there is only black background instead of my
desktop background ( it can be seen while booting and loading win
but as soon as it loads it becomes black background).
I think its about active desktop, it;s probably turned on so I'd like to
tiurn it off.
I tried to find so;ution but couldn't.
One thing more,
in my properties there is only tabs of screen saver and setings and there is
no tabs
of desktop,and other tabs.
How to back it again.

Thanks for Your help