More accurately, there's an intermittent compiler bug on XP (a 10 year old operating system) which doesn't occur on 32 or 64 bit versions of Vista or 7 (or at all on Linux/BSD/Mac). The same compiler bug also occurs on systems which are overclocked or have faulty RAM.

Anyway, Firewave was pissed because it wasn't happening for a while, so now he can go to work.