Might be a issue with my clock source setup. Used a 74f04 hex inverter IC to get the crystal oscillating. Might have the wrong capacitance on the crystal. but My block erupter likes to run with a 16 mhz crystal installed and a active mini fan cooling system

changed the voltage resistors to 1.2k
Hashing is all over the place between 390-500 mh/s Im wondering if this is my cgminer settings? sometimes the status led stays on for a bit of time as though it is waiting for work.
What is your error rate? From your post am I reading correctly you replace R1 and R2 with 1.2k resistors? That would be 1.6v correct? I have a 16mhz oscillator installed on the board and am trying tweak the voltage to get it stable.