What command lines are you passing in to cgminer and bfgminer when they succeed for you?
Can you also try running:
and:
These commands should list your USB miners. Please paste the output back in here. Also note that the USB miner will not be detected if it is in use by something else (zombie miner process).
the commands im using in cgminer 3.3.1 for it to show my miner is
for some reason now bfgminer wont run my asic miner n just runs my gpu so im not worried to much about bfgminer as i usely use cgminer for the most part and as for cgminer -d it says i only have the gpu but i know my miner isnt set on a com port like all the walkthroughs . when i mine using above settings it shows up at amu in my miner which is what the block erupters are set as in the new cgminer 3.3.1
edit. after uninstalling all drivers for it and rebooting and then reinstalling the zdiag it shows up in cgminer as amu when doing the cgminer -d? command. but still doesnt show up in multiminer
edit 2. i rechecked multiminer and i had it set to bfgminer so i switched it to cgminer and it now shows there.