Hey all.. Just went and bought a brand new lappy. Toshiba X500-00X. Windows 7 x64, nVidia GTS250M GC, Core i7 720Q, 4GB DDR3 RAM.. Only bought it yesterday and have already got lots of BSODs, all with the same message :S On the actual BSOD it says "driver_irql_not_less_or_equal" Sometimes it is without "driver" at the start though. Every time it mentions something about tcpip.sys.. This lead me to think it may have been my network card, but I've updated the drivers for that :S It doesn't seem to happen at any particular time, it's just random. Am about to do a memtest, but just thought I'd post here first in case the problem could be pinpointed. I've attached some minidumps and a text file with some info from event viewer on a critical error. Cheers!