Yamaha DTXpress/DTXplorer/DTXtreme

HI,

I just got myself the din-midi cable and I try following the info on 
dtxpressions to start dtxchanging kits.

My setup is a dtxpress II and a PC running XP and sblive value sound 
card.

The problem is I can't see in dtxchange midi setup the out and in 
ports - i only have listed:

In Midi in device:
=--------------------
Sb Live! Midi port[d400]


in Midi out device:
=----------------------
Microsoft Midi Mapper
Sb Live! Synth A [D400]
Sb Live! SW Synth[D400]
Sb Live! Synth B [D400]
Sb Live! Midi port[d400]
Microsoft GS Wavetable

I don't know which to choose (and I tried every one of them and 
couldn't make it to work).

I read in the archives a message by someone saying he fixed somthing 
like this by disabling the game port. Is this possible?

Thanks, Yoav