Thank you for the advice, John. I will try to follow it.

Andrew just told me last night that he is aware of no use for the midi mapper since Win 98 and suggests that when midi mapper is selected as the output driver you are probably just getting the GS Wavetable. And he says the GS Wavetable probably uses the same midi implementation as the midi mapper. So I have to assume the GS Wavetable selection will cause the same problems you refer to that the midi mapper causes.

In my Windows 7 64-bit laptop, aside from the midi mapper and the GS Wavetable, my only options are the TTS and the ForteDXi.

I have used the SD-20 on the job for over two years. I just got a driver for it for the 64-bit Windows 7 system and it works well. So it seems that if I can't get a file to play through the TTS or Forte I will have to set up my laptop with the SD-20 and play the files through my stage speaker system to edit those files. That is what I usually do as a final check of a new file anyway since things always sound different through the big speakers.

Given the circumstances, I don't know of any other alternative, do you?

Thank you very much for your continued advice. I really appreciate receiving it! I am learning. Scott