signor_john - 7:00 pm on Feb 19, 2009 (gmt 0)

Or maybe it had to do with the fact that comScore just guesses what the numbers are based on their small-scale surveys... ;-)

Surely you don't mean to imply that a huge drop in market share (from 63.5 percent to a mere 63 percent) is the result of an inadequate sample? :-)