Has anybody else encountered this?

I'm using Word 2002 for a significant period of time (more than twenty minutes) and I've worked away on a number of programs. I finish, and I click the program closed. Word then waits a couple of seconds, and then announces that it has crashed. It gives me the option to send an Error report to Microsoft and to restart Word and recover my work.

The recover feature works great, but it would be nice if Word wouldn't crash in the first place. If Word has not been used for that long, the program can close almost instantly. The program crashes, even after I have saved the document I'm working on and have closed it separately.

Can anybody tell me what is going on?