Ah. Hem. This is a problem: what if your game used to run on windows but now runs on anything except windows?

A latest code hack in the engine to do with threading and arrays has had no effect on the breed of nix based operating systems Mac OS, Ubuntu etc. However windows seems to manage memory in a more illogical way and now refuses to run - gdb says nothing is wrong except for the 400 odd runtime and memory access violations per second. The worst part being GDB is anything but helpful in diagnosing anything...