Question, I must have something configured wrong.  When pointing to the multiport 8888, all my USB block erupters go into a WAIT state and stay there if it's mining BTC.  At least it worked fine while mining ZET and FRC.  But when the pool switches to BTC, my block erupters stop hashing and bfgminer shows each one in a WAIT state.  And another weird thing happens at this point, the CPU fan on my computer will crank up and get noisy.

My settings are as follows:

bfgminer.exe -o stratum+tcp://pool1.us.multipool.us:8888 -u xxx -p xxx -G -S all --icarus-options 115200:1:1 --icarus-timing 3.0=100 --api-listen --api-allow W:127.0.0.1

Thanks