low and behold, the issue popped up again (after successfully going in and out a few times). i re-entered with plugs off, and tediously turned on a group at a time, saved and re-entered. took a while - but when i added back the plug below - it immediately hung. odd, because i've been using this plug for a few weeks with no problems. the only change was adding STILLWELL's exciter with it. i dunno, maybe had nothing to do with - or everything. anyway - it's back to safe, ole REAFIR for me. culprit PLUG: i have no idea why taking GRANCOMP3 off orginally allowed me to go in a few times without errors. the second time it hung - it was actually hanging on a VR5 file, which had me in a panic because i thought there might be a corruption with one of my primary tracks. anyway... for whatever it's worth.