Went back and looked in the panel today. The guy who made it up had the neutral from the 12/3 spliced to a piece of white THHN because it would not quite reach the neutral strip on the bottom of the panel. I followed this THHN down, across the bottom of the panel, past the neutral strip, back up the other side of the panel where it was wirenutted to the neutral tail from a GFCI breaker. Apparantly he had intended to use this piece of THHN to lengthen both neutrals so they would reach the strip. All he forgot was to CUT IT IN THE MIDDLE AND ATTACH EACH ONE TO THE NEUTRAL STRIP!!! Keep your eye on your help and never assume anything.
[This message has been edited by poorboy (edited 10-24-2006).]