JH600 Error

Any JH600 folks with experience lurking on the forum?

I've got a JH600 that recently started having some intermittent problems with playback master 17, it won't release the cue list, sometimes the fader gets 'stuck' on and will carry over to each page, pig+release won't release the fader but sometimes select then release will release. (The master/cuelist in question is not on a template page)

Restarting the console will cure the problem and typically it only does it on the initial power up, then it's fine.

Last night during a show it started acting up and then popped up the following error:

\hog2\build\channel.cpp
($Revision:20$)(943)
JNT v2.3(34):Internal
error-channel state
lost

It was just an error, not a crash. I've been using JH consoles since they were released and have never encountered this before. I've got spare faders and have thought about replacing the fader in question but to me this seems like more of software or maybe show corruption than hardware.

Any suggestions?
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