1.3 resets a friend's computer.

[BZDraconian]

He has a nice machine, the ATI 9500 XT video card, easily enough hard space for BZ2 with a 120 GB hard drive and a really fast processor. He also checks constantly for viruses. It is purely BZ2.
It is also a clean reinstall of BZ2.

[Zero Angel]

Overclocked? BZ2 puts a lot of strain on the CPU regardless of the video card.

[AcneVulgaris]

I've got a similar problem with my radeon 9000 chipset in my laptop...if i get in and out of bz 3 or 4 times, i get a BSOD.

Of course, changing the screen resolution the same number of times does the same thing.  I have the latest video driver (over a year old...Dell doesn't give a rats ass about complaints on their message board...they're on to selling new stuff now.)

[Element]

Like ZA said overclocking too much will cause problems. BZ2 will give me a BSOD restart if my comp is OCed to high.

[technoid]

Heat caused from OC could be one reason, though driver conflicts also can cause blue screens.

[OvermindDL1]

No overclocking for me and my computer BSOD's when I try to do anything else besides BZ2, it is one of the few games that actually runs perfectly on my computer.