For some reason my default video player on my MacBook Pro is Quicktime Player 7 and I have no idea how it changed from Quicktime Player X. This can been like this for a few weeks, before upgrading and after upgrading to Lion. I can't find a way to switch it back but it is bothering me. Now if I want to open something in the Quicktime Player X I have to right click it and open it that way. How can I change this and does anybody know why it changed?