Yea the Mac version doesn't have the calculation programs. And it was using an old version of the AQ widget as well. Hopefully we'll have that someday soon though.
Those mag plots look an awful lot like the other ones... strange. You could try just logging for a bit in different spots w/out freezing it first, just to get an idea of the magnetic environment. If it's the same everywhere in your house, then perhaps it's something else about your setup that is influencing it... Or you have to move. Ultimately I'm not sure how big a deal those disturbances are. Probably not that bad.
Out of curiosity, you could try graphing the mag volts and see what they're doing. Those are LOG_VOLTAGE3, 4, & 5.
-Max