Here's the size the problem turned out to be, quoting a portion of an article on Gary North's site

Date: 2000-01-14 14:23:25 Subject: Failures Will Continue, Says Accounting Firm Link: http://sightings.com/politics6/bug.htm Comment: This is from SIGHTINGS (Jan. 11).

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The millennium bug caused just 67 significant computer failures across the world in the first week of the New Year, according to figures released yesterday. The bug count was collated by the Year 2000 Research Centre, which was set up by accountants KPMG and the British Bankers Association. The glitches ranged from failures reported at US power stations to problems with Internet music systems around the world.

-- Anonymous, January 16, 2000