Does anyone experienced having trouble in updating iTunes to 10.6.3 via Apple's software update? I was going to update mine to 10.6.3 from 10.6.1 however, an error message popped up stating that download can be corrupted or whatever but download even haven't started yet. There's also an exclamation mark on the side next to the update. I'm running Lion on the new mid 2012 MBP. I opted to manually download iTunes instead but I believe the software update should do its work here. Any reason why it failed? Thanks.