Have just updated my computer and put clean install of Windows XP Pro on, The PC crashes intermittently to BSOD with the following message: BAD_POOL_CALLER Stop: 000000C2 (0x00000007,0x00000CD4,0x024C004,0x889148B0) I do not understand these codes so would be very gratefuil for any help in resolving this problem. The PC does not crash in any particular program it just happens randomly no matter what program I am using. Have run both Virus checker and anti-spyware and system is clean Temps for sytem are ok CPU 50degrees, mobo 38degrees, GPU 51degrees so don't think its a overheating problem. Thanks a lot. System Specs. Asus P5WD2 Premium Mobo Pentium P4D dual core 3.4ghz CPU 2Gb 533mhz Ram Gainward 7600GT Graphics 500W PSU (Sorry don't know make but wasn't a cheap one £45.) Maxtor 80GB HDD IBM Deskstar 60GB HDD Sony FDD Soundblaster Audigy Sound Pioneer 110D DVD Writer Toshiba DVD Reader Saitek Eclipse USB Keyboard Logitech Optical Mouse Samsung 970P LCD Monitor IIyama Pro 452 CRT MOnitor Windows XP Pro + SP2 The mobo, CPU, graphics card, PSU and RAM are all brand new (1 month old) Thanks again.