daisy-Chain Duet 1 Thru External Firewire Drive?

Hi There

I bought a new MacBook Pro Retina tho I'm the user of several firewire devices and a Cinema Display. On my new machine, I'm currently using one thunderbolt for the display and the other port for a firewire adapter. I've been plugging my Glyph (to which I record my Logic projects) into that adapter and daisying my Duet 1 into the back of the Glyph. So far so good. Despite Apogee's warning against this, I've recorded just fine. But I noticed yesterday that I wasn't able to modify the output balance in the Maestro software mixer panel. I can slide the software and line in faders up and down, but the balance between the track and my mic/line in doesn't actually change.

Anyone experienced this and know of a fix?!

Many thank yous,

Grabbin'