Can anyone help me?

I have a program written in VB 4.0 at home that works fine except when I
bring the .exe and .mdb files at the office the program works fine until I
try to access the .mdb file then it gives me the error msg 424 saying
"Object Required".
Could it be that I am missing some .dll file at the office or it's
something else?
thank you for your replies.
                                     Alain Themens