Software :: MIDI File - No Audio Output From Standard PC Soundcard?

have recently installed CentOS 5.6 Final on TWO DIFFERENT desktop PC's, and, on EITHER ONE, I can not get any sound output when using KMid to play a "standard .mid file (the file I am using to experiment with is "Canyon.mid", from the Windoze Media directory, a fairly standard midi audio file, I should think?!). I have normal audio output on both of these machines (.mp3 files, system sounds, etc.), so the specific sound cards are NOT the issue, here!I am thinking I must be missing something, as both of these PC's are completely different CPU types, etc. as well. The only significant similiarity in the two machines is the complete lack of MIDI audio output!And, yea, the soundcards are BOTH MPU-401 compatible, and they both have irq's assigned to this port (or, maybe just one has an irq assigned, I will have to double check...).