That isn't enough information to really figure out what the problem is. Between IIS and Access there are just too many things that might be going wrong. The first thing I would like to see is the ASP code this person is trying to run.
One possibility is that they are using a recordset.AddNew to create the new record and need to put a recordset.Update to finish the transaction. I know this can trick people because depending on how you use AddNew it may or may not need an Update afterwards. It seems likely to me because it would cause the page to open a transaction for the AddNew and never close it, which I think would cause exactly the problem they report.
Jay