Well, this is what my evaporator looks like after about 48 hours of continuous operation with no defrost cycles. I skipped over the defrost cycles by manually advancing the defrost timer on the fridge.

http://users.usinternet.com/nkelebay...r/Fridge-2.jpg

The evaporator coil has a total of 40 loops; 20 in the front half and 20 in the rear half. There's frost formed on the first 7 coils, and the rest are bare.

Me thinks it's time for a new fridge.