iTunes Store Bought Shows Sometimes Audio/Video Out of Sync

[hexonxonx]

Sometimes I will notice the audio is out of sync on my iTunes store bought videos. Rebooting the computer helps until the next time. This really started to become a problem over the last few months.

This is a 15" MBP, 2009 bought in March, 4GB ram. Storage is on a 1TB WD drive in a LaCie 2 big tripple enclosure with firewire.

No extra software installed and the computer is only used for iTunes and internet. Has all updates.

Any ideas?

 

[MacTribe]

Are you on 10.5 or 10.6 OSX? Are the videos stored on the local harddrive or on the external?

I assume you're watching through iTunes itself?