I disagree in regard to running -S bigpic:all. I am running my single BF with bfgminer 3.5.1, with the 'alfa driver' provided by Beastlymac, through a batch file called #MINE.bat on Win7 64, the content of this batch file is
bfgminer.exe -S bigpic:all -o [pool url] -u [user name] -p [password]
You can use -S bigpic:all as long as you don't also have USB Block Erupters. As has been discussed before, using -S bigpic:all will screw up erupters, and using -S erupter:all will screw up BFs.