Nope, was on 3.10(thought that was the latest, so does google), now it sees the BFX, mining at 4.2GH/s! which is fine for me, calls my ICA's BES though for whatever reason.
Wow, a real world Icarus is still mining?

Block Erupter Sapphires are more common, so BFGMiner 4 assumes them by default.
You can tell it that it's an Icarus with
-S icarus:all