The FTP is actually not too smart. It's basically just an audio hub. That may be beside the point. I'm a little confused about the cause of the problem. If I understand the tech, the U-110 is resetting because it thinks the controller is offline. But the controller doesn't appear to be sending the A...

Thanks for the reply. It has led me down an educational road, to be sure. After using Midi Monitor on OS X 10.5, it seems the m-audio 49e does not send Active Sense messages, but the m-audio Fast Track Pro (FTP) does. I've been unable to turn off Active Sense on the U-110. So, what I'm wondering now...

Hi, I have a new-to-me Roland U-110. Using an m-audio 49e, I get intermittent dropouts accompanied by "ACT SENSING ERROR" on the lcd. Diags offer the following: Battery Error 4.3v DAC Offset Adjust (Adjust VR2) DAC MSB Check (Adjust VR1) ROM slot errors All other diags pass, including midi-in-out. T...