>         I don't recall your exact application, but is the incoming
waveform
> approximately symmetrical?
It's exactly symmetrical.  If all else fails I will try chopping the bottom
half and multiplying the result by 2.
I've read so many things that right now I can't even remember what steps to
take next before reading messages again.
I think I'm going to strip the program down yet gain and start building it
up from scratch just making a one channel RMS voltmeter with the bias line
removal and see if it works again....if not, take some measurements and post
the code and the results somewhere and reference the url here and see what's
wrong with it.