OK. I booted up my computer this morning, and was checking some of the usual things msn, email, facebook ect... I needed to edit a photo in photoshop, but then this thing popped up about scratch disk are full, so i closed firefox and tried again, it still didnt work so then i checked my performance tab have a look cause i don't know what's wrong, it might be a hard drive memory prob but still i bet theres something wrong with my memory anyway.