XP home sp2 AMD Athlon(tm)processor 256MB Ram Computer BSOD many times in a day, PFN list corrupt, Memory Management, IRQL not less or equal, Device driver attempting to corrupt the system has been caught, Bad pool caller. Yesterday the monitor (AOC) screen darkened and the went black. Changed video card from 3d Rage Pro Turbo to SIS 5598/6326 (Old one from past computer) worked for approx 1 hour then same symptons...BSOD and loss of screen. Have changed monitors and seems to be ok again (still getting the BSOD) so think this could be a separate issue maybe to do with power from monitor to motherboard . Attached last 5 mini dumps, please help a damsel in distress!