I know - I was kidding - that's a plugin we certainly have not installed. We do have some outside support looking into it because this one is beyond Jeff and me.
I was just given a new computer at my dealership (huzzah) and now I too get logged off for being idle on these forums. The error I get when being idle for ~10 minutes and clicking "My Refresh" is:
Fatal error: Call to undefined function construct_usercp_nav() in /home/kershner/public_html/forum/modules/subscriptionthreads.php on line 379