Shoutbox

I have a little problem, a few minutes ago i was in a friends house, in her computer, and i executed Limewire, iTunes, SonicStage, Nero, WLM, and MiPC at the same time, i went from her house.

She called me saying that when i left she closed all the programs but a blue screen appeared saying "A problem ocurred and Windows will restart, if this screen continues appearing boot in safe mode and deactivate any antivirus, defragment the hd and other things.

I tried to boot in Normal Mode, Safe Mode, Safe Mode with networking features and those things.
but everytime the blue screen appears

How can i fix it?

thx in advance

edit:
XP SP2
2.00Ghz
128mb RAM