I realize that this is a dormant thread, but as I am trying to incorporate my Integra-7 with my Sonar Platinum, I'd like to add my $0.02 and point out an issue that I am experience.
As far as AUDIO, the Integra-7 works flawlessly with Sonar Platinum with one caveat - since the Integra becomes the AUDIO DEVICE, my headphones have to be plugged into the Integra. (In order to return the audio to my desktop monitors, I switch back to my Tascam audio interface.)
The Roland INTEGRA-7 Editor (Ver.2) works well in my setup (providing I set the DEVICE to "Integra CTRL") and I can call up all of the sounds (SuperNatural, PCM-S, PCM-D and the Expansion Packs). I can assign the any of the sounds to my 16 PARTS (which would correspond to my Sonar Tracks) and I can play the sounds with my keyboard controller.
Here is where I hit a wall - as soon as I start playback in Sonar, the screen on the Integra displays "INIT Studio" and all of the PART/INSTRUMENT assignments have been cleared! (I saw nothing in the EVENTS window that would cause this and no SysEx data is being sent.) I sit here today (040717) trying to figure this out on my own, but may have to put in a Ticket with Roland Support (who have been very quick to respond and quite helpful on everything I've asked so far).
The Integra-7 is a fantastic device (I use it every Sunday in the church orchestra) with amazing flexibilities (I send my Keyboard Controlled Sounds to the sound board on OUTPUT PAIR "A" and the EWI-5000 Controlled Sounds - wind sounds from patchmanmusic.com - on OUTPUT PAIR "B"). I load my Integra sounds with an iPad running "forScore".
Anyway, I was giving my brain a rest and decided to add these comments to the thread. I thought I had a good Roland Users Group, but can't find my saved link.
Thanks for taking the time to read this!
Doug