J++ application crashes!!!

I have a J++ application that works fine on two of my computers (one NT and one Win98), however it doesn't work on two others (also NT and win98) and I can't figure out why... Whenever I try to run it I get a "java.lang.ClassCastException: COM object bound to com/ms/wfc/data/adodb/Connection instance does not support the interface {00000550-0000-0010-8000-00AA006D2EA4}" error. I think I have narrowed it down to a Connection/Microsoft.Jet.OLEDB problem in one of my .java files, maybe I don't have the same drivers, dlls installed on the machines that don't work. I tried to download the latest MDA Components pack from Microsoft, but that didn't work either... can anyone help??? I'm stuck...

OK here is your first problem. You are using J++. Anytime that you use a microsoft product, you will get weird things to happen!!! If you are using Java my view on things is to try and make it platform independent. Why use the MS java classes. Use the API from sun and move to another development environment. Look into JBuilder 3 Pro