I'm now running with BFGMiner 3.5.1 after running CGMiner for a few days. Looking at BFGminer, it looks like I have one miner that is actually kicking out about 35% hardware errors while the other four miners are less then 4.5%.  I guess I'll let it run for a day and see if it straightens out...if it doesn't maybe I can get it swapped out.