So the next thing I did was check some 1kHz tones at -20 dB and -1 dB. These playback perfectly at correct levels in DP. BUT HERE'S THE KICKER: when I stop playback of the tone, the meters almost always jump before settling to zero. So I took the tone and chopped it into 500 ms bursts with 500 ms space between - and the meters jump at the cutoffs and a 2nd smaller bounce (like an echo of the first bounce) in the silence between tone bursts. Note that I deactivated all track inputs to be sure there were no feedback loops. There was no processing and no MIDI - just a single track of audio playback (Mac Pro).
I should add that this may have been going on for a long time - I'm the studio owner and don't often use this system. The primary user is not as tech oriented about such things. We plan to upgrade to DP8 soon - maybe this will fix itself. Any ideas? (Sorry for the long post!)
