inbox dissapeared

Outlook has suddenly decided it doesn't like my inbox.dbx file and has stopped showing all the messages in it. I've tried copying it to a different folder and importing it but it still doesn't like it. I've tried using a shareware email recovery program (which naturally has the recovery option disabled) and the emails are still there, it's just outlook is throwing a hissy fit.

Any ideas or suggestions for a free piece of software that'll let me look at these messages?

>>2

I'm not gonna pay $25 for what's probably a trivial problem