Outlook/access 2k7 - app migration issue, possibly ref lib prob

[Molly Coddlez]

K, here goes;

i've created a system that pulls info out of emails and jams them in a database. everything worked perfect on my machine.

i migrated all the code and all the reference library details onto the machine the system needs to run on. however, whenever the process hits the line that opens the record set, it gives me a type mismatch error and halts.

the code is right and works on another machine fine.
the reference libraries used are identical, and they are both on outlook 2k7 in the ThisOutlookSession module.

can anyone help shed some light on wtf is wrong here?

Thanks in advance