unable to change desktop

[Taz202]

I just got my computer back from the shop. It had a ton of viruses removed.When I fired it up, I noticed that my desktop had changed. It was now just a plain blue background. I went into display properties to change the settings as the resolution had changed as well. I got the resolution changed, no problem, but the desktop would not allow me to change it at all. The drivers appear to be working fine.
I am running a HP Pavilion
AMD Atholon 64x2 Dual Core Processor 3800+
the os is xp media center edition
I'm not sure if that helps or not?
Any help in this matter would be greatly appreciated
Thanks

 

[Lexluethar]

Do you get any errors when you go into that same display popup to change the background? Does it allow you to change it, click okay but then it never changes?

 

[Osiris]

Post a hijackthis log here HijackThis Logs (analyze) - Computer Forums

You may still have some spyware remnants

 

[Trotter]

Depending on how they removed the viruses, your OS may have been damaged, too. Try Osiris's guide first, but you may need to perform a repair install.

 

[Taz202]

To answer Lexluethar, there is no error messege of any sort. It simply will not let me click on the different themes in the box. The only I can do is change the colour.
I will run the hijackthis scan now

 

[Osiris]

He has some nasty infections......

 

[tasha1133]

try this:
Right click on DESKTOP
click: PROPERTIES > DESKTOP > CUSTOMIZE DESKTOP > WEB TAB > uncheck PRIVACY PROTECTION