Are you using one of the Application presets or having Data Bridge create the table for you? or using the New From Blank preset and using your own table?
if using your own table, please provide the table structure.
When Data Bridge crashes it is usually due to a memory leak in DW. after it crashes, you should restart the OS to release the memory, and Delete the Dreamweaver Cache file from the users configuration folder:
http://www.webassist.com/tutorials/Common-installation-issues