hi i dont know if this is the right place to post, but since i cant find the problem i guess it can go anywhere in the forums. i have recently bought a new pc: AMD athlon barton 3200 Gigabyte pro2nforce2 (rev.02) -NOTE- 1GB corsair xms4000 RAM - (explained later) Maxtor 120GB hard drive SATA Nvidia GeForce 5700 ultra 128mb DDR3 graphics card cd rw dvd combi MSI 550W PSU floppy funky cool lights n fans ok the pc worked fine, until i played my game "Americas Army" after 5 seconds i would blue screen and get a message saying: IRQL_NOT_LESS_OR_EQUAL (sumfin like that) i completely wiped the hard drive and started over to make sure it wasnt a software problem. i tested the game on 3 other pcs, works fine, works fine on 3million other peoples pcs too. i was told by many people it was a RAM problem, my board is apparently very fussy with RAM, and is 400mhz, the RAM was 500mhz, but should clock itself down to the board. i tested the RAM, fine. all i could think was that maybe it only does it in the game because the RAM gets a bit excited then the board sh!ts itself. so i sent that RAM back and this morning i received my new 1GB(2x512)kingston hyperX pc3200 400mhz.......... same blue screen!!!! i am currently making sure i have all the latest drivers for everything in my pc, but i am pretty sure i have. has anyone any ideas what the cause of this problem is and how it can be resolved. the next thing i might try is a different motherboard, but its easier to post on here than take my computer to bits. cheers, colin.