Mitshbishi FX series communication problem

I am having trouble with my new notebook communicating with a PLC. I am using GPPWIN, Windows 2000 on my Dell Latitude. I can talk with A-Series PLS's with no problem, but I can't talk with any FX-series PLC's.

Does your Laptop have an RS-232 Port or only USB?

What hardware are you using to comunicate between the notebook and the PLC?

RS-232 and SC-09 cable.

Now, I might be talking straight out of the back of my head but something tells me that the A series and the FX series talk at different baud rates.
But both will communicate at the lower baud rate 9600 (again, I think)
and the A series will communicate at 19700. Its worth a try altering the baud rate.