[FOSDEM] Key Server Issues?

[David "Lefty" Schlesinger]

I've signed keys for all the folks I met today, and uploaded them to
wwwkeys.at.pgp.net... Please refresh your key from there if we met this
afternoon.

Also, I've received signed keys in the mail from a couple of folks, but when
I try to import them using

      gpg --import {{filename}}

I'm receiving the error

    gpg: no valid OpenPGP data found.
    gpg: Total number processed: 0

Anyone have any clues as to what the issue might be...?