Glad things worked out-I also got stuck with a lemon. First the keyboard died after 2 days. Sent back to Apple for repair. 3 days after getting it back, the screen wont turn on at all.
They are going to replace it, but I have to send it to them again. As for exchanging it at the Apple Store, they told me they could not do it because I purchased it thru a reseller, even though it was shipped directly from Apple to me. What BS!-its the same company!
If the new one is a lemon too, they will probably lose a 15 year customer.