Audio scrubbing problem in Soundtrack Pro

Hi, new to this forum but not new to pro audio! I've been all round the houses trying to fix this one; hope somebody knows the answer.
The problem is that although FCP's audio works as expected through the AJA, Soundtrack Pro only outputs playback audio through it. Scrubbed audio outputs through the Mac's audio out and there doesn't seem to be anywhere to change it. With the way the edit suite's set up this means switching the monitoring selector just to hear scrubbing - not the best workflow arrangement!
The AJA device only seems to be recognised by Soundtrack Pro for video, not audio.
I'm using a Mac Pro 2 x 3 Ghz Quad-Core Intel Xeon with an AJA Io audio/video interface; OS is 10.5.8. I'm also using Final Cut Pro 7.01 and Soundtrack Pro 3.0.1
Anybody got any ideas?
Thanks, Doug.

I'm using a Kona 3 in a quad core and it works in all aspects of I/o.
16 tracks in and out and mixing and monitoring in stereo and surround. And yes, I have a proper surround monitoring setup.
I suspect it's the I/o box itself. Maybe, because its outboard it isn't setup to handle that kind of monitoring. Did you ask AJA?

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Audio scrubbing problem in Soundtrack Pro

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