so.. after a full system format, i reinstalled vista, updated to sp1 and downloaded every possible update for windows and ms office. the other softwares installed are avast, imgburn, poweriso and klite codec pack. now its back to square one. same random bsods. another thing i noticed is that sometimes when i put it on, it says that my windows key is not active. sometimes the realtime protection in the antivirus doesnt work. both these problems occoured before formatting also and both times i was using different antiviruses.
finally the j*rk*ffs at dell have agreed to replace the mobo and ram. this is exactly what i was telling them earlier but they insisted that since their "fullproof" diagnostic dvd didnt detect any hardware failures, it had to be software related. wheres that theory now? it took me 2 days to backup everything, format and update the system. i still havent put everything back yet.