Angus JS do you have DirectX9 C installed? Because I also have Win7and DirectX11 on my pc and I had to re-install DirectX 9C to make TvsT and other games work properly.I used the June 2010 version which is the most complete.
As well check your game folder to see if you have the following 4 dll files:
msvcr 70 and 71.dll and msvcl70.dll and msvcp71.dll.Without them your game won't start as well.
I ahve 2 versions of TvsT with ZeeWolf's mods on them and they work very well.I didn't even set any Win Xp compatibility as it was not required.
80% of the problems with TvsT are related to these issues.It's a very fussy game.
Cheers
