Logon Failed on Export(); when using multiple tables

[WynneSMI]

I'm having an issue with Crystal Reports. I used to have only one table in my dataset and when I ran my report it worked fine, no problems. I'm restructuring my database and am editing some reports. Now when I include a second table (from the same database), to the report (even if I don't use any of the fields) I get an error when I run the report Logon Failed and it is on the line obj.Export();. I can't figure out why when I include just one more table into my report even if I don't use it, it blows up. If I take the table out, it works fine. Doesn't matter what table I pick. Any ideas?!!? Thanks.