Microsoft Access Open Session Prompt

We currently use Crystal Reports 6.0 32-bit with an Access 2.0 database. When i click on the refresh button or Verify Database within Crystal, I get the Microsoft Access Open Session error that prompts for a user ID and password. I also get this error even when I access the sample reports that came with Crystal Reports. I have tried this with Criystal Reports 6.0 and 7.0 (32 bit). Any one know what the problem could be?