Windows XP SP3 Won;t load completely?

Hello,

I have a Toshiba NB200, it has Windows XP SP3, the specs are 120GB HD, 2GB Ram, Intel Atom Processor.
The problem I have is the background for my screen shows up but icons, toolbars etc will not load up.
I have run virus software and it's all clear, tried safe mode etc.
Any Ideas?

Cheers