What arguments are you using to run bfgminer, what OS? We need more info in order to help.
I have Win7
I have 10 BEs and 4 7950s' running on the same rig. I tried two different ways:
1) As per BTCGuilds Guide I created a shortcut and changed it to:
C:\Users\XXX\Desktop\BFGminer\bfgminer-3.1.4-win64\bfgminer-3.1.4-win64\bfgminer.exe -o
http://stratum.btcguild.com:3333 -u XXX_1 -p XXX -S all --icarus-options 115200:1:1 --icarus-timing 3.0=100
I also tried creating a .bat file with this:
C:\Users\bit\Desktop\BFGminer\bfgminer-3.1.4-win64\bfgminer-3.1.4-win64\bfgminer.exe -o stratum+tcp://pool.50btc.com:8332 -u
XXX@yahoo.com -p 123 -S erupter :all
Thanks for any advice.