It is very difficult for the programmers to determine the reasons for the crashers you experience when you provide as little information as you do.

There is a faq, I guess, that explains how you can help them. If you are able to run BW7 from the standard setup, then try to change one thing at a time. Change a parameter, exit BW to make it update the ini file, and the run BW again. If it works, change the next parameter.

I know it's tedious, but my own experience is that this is a helpful way to proceed. As soon as you know what causes the crash, they will fix it quickly, if you send a detailed explanation and the ini file that was saved just before the crash.

Good luck.