If you tried the ICE ECC recovery program, how many blocks did it say were required?
Did you re-download the file recently? I would have thought even if there was delay propagating the updated file it should be ok by now. I downloaded Dragon Commander 72 hours ago, and didn't have a problem with the install.
I did once have an issue with a delayed update for Divine Divinity, where a couple hours after an update the copy on the server closest to me hadn't been changed, but it was when I tried again the next morning.
