Hi, I've just installed the same modem on exactly the same board. The installation went fine and you don't normally have to worry about which COM port to use as long as you don't have any conflicts with other devices, Windows should be able to detect you modem. If you are having problems with 'No Dial Tone' messages, (as I am), I have been told that this is due to lower line voltages used by cable companies (if you are on cable). I'm sorry but I don't have any answers to this and if anybody comes up with anything, PLEASE, PLEASE let me know. Thanks.
Al