Hoi! Thanks for the bug report. Will look at this ASAP, check back here later tonight. Sounds like a missing datafile problem (UGGH! these are super annoying for me =) but normally I catch them before a release) -- however it might be something else.
One thing you can do for me in the meantime, which would be a HUGE help, is to run the game (until it crashes) and then email me the file "trace.txt" in the installation dir. This contains a lot of information that can help me diagnose the problem, in case I can't figure it out on my own.
I'd really, really mega appreciate it if you could send it to me at email@example.com
Right now I have a minor HW issue to sort out, so I have to shut her down.