I have also witnessed this. I was running 2.0b7 w/ hijack v84 on my mk2a (restore DC/car visual - disabled). First the timecode changed from elapsed/total to only showing elapsed, and my VolAdjust setting changed from Med to Off. I only noticed it because I found myself changing the volume between songs and realized I shouldn't have to do that. Another time it switched to a previous playlist. I have also had it switch to different info modes - I usually have the bottom button toggle between track and transient, but a few times it has switched to track/line or track/seek.

Most of these occured when going from DC to AC power and vice-versa. However, the elapsed/voladjust quirk happened when re-powering with DC in my car after being off for three hours.

Last night I upgraded to Hijack v110, but I haven't moved it around between AC/DC enough to know if it's "fixed".

-Jeff