What does the bfgminer screen say, though? That's kinda the important bit.
Seems to be mining away normally - but just with the erupter
Just thought there was a quick & eay fix - I can get the Ant mining on it's own, hardly worth the efffort for the Erupter a few cent every 24 hrs
Thx, appreciate the help, not going to waste time trying

WE need more info.
Are you running on Windows (32 or 64 bit) or Linux?
What version of BFGminer are you using?
I can only speak for Windows 7 32bit.
I run nwoolls BFGminer 3.9.0 version 3 or the main depository BFGminer 3.10.0 with the following at the command line:
bfgminer -S antminer:all -S erupter:all -S all --set-device antminer:clock=x0981
if you are using any older version of BFGminer, it will not see the ANTminer U1.
Also, even if you run the 64bit version of Windows, you need to run the 32bit version of BFGminer, or you have to specify the COM ports. I have no experience with this, so go backwards in this thread and you will find the info for this.
Answer the above two questions and we can help you better.