Michael,
I responded about the same on the "Help" thread you posted. I agree- it is a ground. Ask him what he has installed recently... any guages/sterio/etc?... go back look at any new wiring & see what is grounding. Also- you mentioned "flashing" in the other thread... look at the flasher/wiring & replace if ness...
I got your e-mail on the X-bow. I might be able to get you a deal, but man, ours are very expensive. They are typically 50-60ft per second faster than all the competetion. On ours, you can let them down w/o having to fire them too. We have one called the "Assault" which is all black carbon fiber looking.... simply EVIL looking. Anyways, maybe we could do something, but they are about $1600.00 to $1900.00. Maybe a trade for parts is a better way to go. I don't know, let me know your thoughts. Our X-bows are absolutley deadly man. Whatca Got???