Microsoft Access 2003 HELP

I’m running an Access database on differnet computers, some are running on service pack 1 and others are updated with service pack 2. The problem is that i’m getting empty and erroneous fields when I pull up certain reports in the database on the computers updated with SP2. The coding in the control source is correct and working on SP1, but i can’t figure out for the life of me why SP2 is causing it to not display the reports correctly. Can anyone help?