The last round of the day for Auction 73, Round 31, was postponed until tomorrow by the FCC late today. The announcement on the Integrated Spectrum Auction System read:

“2/4/2008 04:11:42 PM
Round 31 Postponed
Due to a delay in the availability of complete downloadable reports, Round 31 will be postponed until 9:30 a.m. ET tomorrow, February 5, 2008.

”We will continue with the previously announced five round bidding schedule until further notice. Bidders are reminded to monitor auction announcements for further changes in the bidding schedule."

Sources at the FCC indicate that the system glitched on producing the end-of-round reports from Round 30 and there was insufficient time to locate and correct the bug before Round 31 was scheduled to commence at 4:30 p.m. EST. Round 30 still hasn't been posted on the Integrated Spectrum Auction System as of 4:40 p.m. EST, and it was due at 3:40, which suggests that the bug hunt is a bit more complicated than the FCC initially anticipated, but there's no reason to think the auction won't recommence tomorrow as scheduled.