Just noticed your pic with the monster heatsink, jesus....
.
its a sink for a Northbridge with ether a massive CPU heatsink, or for the Southbridge with large GPUs
but none the less, its moving the heat off nicely, ambient is 20 degrees Celsius, sink is
35 43 degrees at the top fin.
im wondering if running the 2 instances of CGMiner, on the 1 login causes one to drop the whole lot of miners its working with (eg: the 9 sticks all go down then reset usb connection)