Last night I spent an hour and a half on the line with Apple Tech support. I had to buy Applecare for $70 (which I would have probably done anyway). I was bounced between iphone and mac support (their scripts had not been adjusted for Lion terminal, apparently). They had me reload itunes-- no dice. Then they had me set up a test admin account and try to upgrade. No dice. We agreed to stop there and see if anything develops; I will call the service tech later this week,