Thank you for that info Ron! Guys, yesterday I received a second answer from MakeMusic Support and they gave me an interesting way (and more detailed) of facing and solving my IO playback problem....

Thank you Arthur, I wasn't aware there was a newer Aria Engine... and I guess it wouldn't hurt to try it.

Yes Ron, I sent my file to MM support and they answered two days ago. The person in charge of my case told me "Instant Orchestra's Library handles dynamics differently than some of our other...

Thank you Bill, I will try and download the newest DELTA 1010LT driver then. :)

Bill, years ago I updated my finale (not sure which version now... maybe finale 2008) and I found out I was only getting sound on the left channel during playback (using finale playback along with my...