mistermumbles: [The setup executable is definitely borked though. I tried running it after the initial setup/launch just out of curiosity, and all it does now is start the game automatically.] It's not a bug, it's a feature :-P
Seriously though the idea is that GOGSetup either starts in setup mode (on the first launch, or if started through Setup menu start shortcut), or just starts the game on every subsequent run, so you don't have to click through the launcher every time.
monkeyfudge: Well I get a window that called ERROR that says 'program crashed'
(Windows 7 64 bit)
This actually looks like the message from the launcher that fixes corrupted colors on Windows 7. It still means that the game executable crashed, but are you sure you launched game exe (
PoTB.exe/
D3DPopTB.exe) directly as wpegg said?
Also check if "run as Administrator" is set on compatibility tab for those two execs, not just GOGSetup.
And one more thing - if the game crashes, please write if that happens on software mode, hardware mode or both.