As long as you're connected (i'm guessing USB?) and your drivers are installed correctly it should be a no brainer. Choose your I/O from Options -> MIDI Devices, load up the PSYN II synth (optional), arm the MIDI track for record, and go at it.
Well it detects my Fantom just fine. I'm referring to playback of MIDI data through the program through my speakers. The only way I've gotten it to work is by outputting MIDI data in to the Fantom and playing it back through there. FL works just fine though... maybe it's a sign?
Have you tried getting any output through Sonar at all, not just MIDI? Maybe you have your sound card I/O set up wrong.
Yes, I'm getting audio output. Just not MIDI output.
Maybe this is a sign to go with FL...
I have a feeling it's a soundcard issue so I'm going to just start with FL. zircon sold me on that one!