I think we're thinking it's external interference, especially if it happens at the same place.
Mine didn't do it enough for me to notice any pattern, although I could have sworn it did it at least twice around the same area.
Here are the relevant phantom FI light threads:
http://www.zggtr.org/index.php?topic=11130http://www.zggtr.org/index.php?topic=9892http://www.zggtr.org/index.php?topic=10192http://www.zggtr.org/index.php?topic=12295This thread should probably be renamed to something descriptive.