The problem started a few days after I upgrade the XBMC to XBMC-SVN_2007-06-17_rev9336-T3CH.
Since then the power button doesn't work properly, if I hit it the box automatically reboots. The eject button has a mind of its own, opening and closing at will.
But it does this even at the Xenium startup screen. Which makes me think it has nothing to do with the XBMC. Even after formating and installing the latest 'stable' OS for the chip 2.3.1. The only thing I haven't done is the Xecuter2 bios. I just loaded TSOP and its doing it there as well.
Did I maybe overheat the MB or something of that nature?