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Over on the elections page, I see a link to "add comment" on every nomination except Arda's.
This is in Chrome 13.0.782.112 on Windows 7. Don't know if that's at all relevant, but better more information than not enough. :)
You are correct Grace Note - he withdrew and then put himself back up for election. I have unlocked the candidate for now but another withdraw will land him back in locked and ineligible territory.