My forum freezes

Hello. This is my first post in this forum. I recently installed webwiz forums on my web site and initially it seemed to work ok. I could manage it and my users could post to it. But in the last 2 weeks it has "frozen" 3 times. The last time was tonight. It is loaded on my web server and uses an ODBC driver for Access 2000 (Access 2000 itself is not loaded on the server) and I assume this is sufficient. I thought it might be a number of users problem but when it happened tonight there were only 3 active users on the site. I checked the directory where the mdb file resides and there was no ldb file there if that sheds any light. Someone please help!

Its a small database - only just started - 20 users - 15 posts. Freeze means nothing happens i.e. I cannot access it. But yet I can access the rest of my web site indicating that the problem lies in the forum and possibly the database?