Hi, My system is perfectly stable for a few months, and then it just has a BSOD out of nowhere ... somehow the latest one seems to point to firefox? Anyone got any ideas? I have a 550W Antec PSU and my RAM has passed a Memtest. From my event log: Code: Event Type: Information Event Source: Save Dump Event Category: None Event ID: 1001 Date: 2007/01/24 Time: 01:21:20 AM User: N/A Computer: xxxxx Description: The computer has rebooted from a bugcheck. The bugcheck was: 0x100000d1 (0xb2ff524e, 0x00000002, 0x00000008, 0xb2ff524e). A dump was saved in: C:\WINDOWS\Minidump\Mini012407-01.dmp.