Mac,
I re-checked all my Audiophile 2496 serttings and they match yours perfectly. They were already set as you have yours so did not have to change anything. I was using a mixer but only in the line to the computer audio-in. The computer audio out just going to a headphone distribution amp. NOT back to the mixer. Now however I am not getting any audio out of the sound card at all. Not even the already recorded music tracks when in playback. VU meters indicate signal output both in PT and 2496 Mix-Mon.
I also changed out the rca cables with new ones to make sure they were not causing a problem. Still no audio out now. Beginning to think my 2496 card has croaked on me.
Device manager says all is well with it and says it's working properly. Guess my next move is to try another sound card.

Thanks for the help though!!

Larry