What's available depends on the soundcard being used. I have an Audigy one and the below image shows some of my options.

Try recording some midi using the external keyboard and then post the track so that we can download it and study the recorded midi information. That would help get a better feel for what is happening.

Also, under "Prefs | Midi driver" can you please take a screenshot of the settings Window that pops up so that we can have a look at it. That too will help.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
MIDI volume on soundcard.JPG (32.45 KB, 121 downloads)

MY SONGS...
Audiophile BIAB 2025