computer crash

[Factfinder]

my computer was crashing and I was told I would need to reinstall windows, which I have done and I have also removed Norton beccause that is also supposed to cause problems(read that on this site also). Was going alright for a couple of days but as soon as I plugged my PSP in via the USB it crashed immediately. Has anyone else had this problem?. Any suggestions?

[alunrw]

Looking at some forums on Google theres reference to possibly updating the USB drivers - I have no idea sorry how a PSP would work with a PC, but there also seems to be a bit of a potential problem if the USB is a hub-type USB - its seems to be something to possibly do with the power - is the PSP powered up independently ,or is it run from the USB - I have a USB CD/DVD rewriter and although its plugged into the USB port it does need its own power supply as the USB alone wouldnt have the power to run it - perhaps this is what's causing the problem? Sorry this is a bit vague.