I checked out "datube" first thing--added it to my guitar on 2 while rehearsing over a melody on 1...at first I heard nothing--not even my guitar...so, I instinctually turned up the 'monitoring level' knob on the motu (which was at zero--cause I don't normally use that bus), and sure enough there I was--but the signal didn't sound like it had been processed thru the "datube" algorhythms...it sounded the same as it did earlier--dry--when it appeared on the bus I had it set for...then, a few minutes into listening critically, the damn thing (mono) decides to ignore the mono "split" (so that I could hear it bilaterally thru the headphones) and rested only in my left ear...I say it at least fails the "ease of use" test....it's actually very strange--why would a new CuBase effect find it's way "home" to my motu's "Monitor Level" bus...equally inexplicable is--why would it then "settle-in" on only the left side of my phones?...and further more, why does it appear to not have any "effect"?...I think I'm missing here, and it probably doesn't have anything to do with 5.1... got any ideas?