Oops, 64 bit only.
Guess I have to wait a week or so 'till my "next gaming machine" parts show up, as I don't have anything running a 64-bit OS yet (I do have Win7 64bit for the new gaming machine waiting).
I do have to wonder why they limit it to 64 bit only, does mining Ethereum take a ton of memory for some reason?
The Ethereum use DAG, it started from 1GB and it will rise 600 MB per year. Originally the PoW was planned to last long.
You like the convenience, but they're practically stealing from you since you'd get more mining on say dwarfpool and converting via an exchange. Also, pretty much any possible CPU you could have will run a 64bit OS without problems. 2GB ram is fine for 64 bit even, I actually noticed better real life perfomance on a workstation rig I did for a friend running 64 vs 32.