The QuickTime player always opens to large and off center on my screen. I have changed preferences in the options to every setting possible but nothing works. Using Windows 8. My windows 7 machine behaves exactly the same. I am running the Free version of QuickTime. I do video editing so I must have QuickTime in order to do my work. I have many videos with transparency created with the Animation codec. The Windows player cannot play them, if it would I would not need the QuickTime player at all.When I click the fullscreen button at the top right hand corner of the player it corrects itself but I must first slide the player to the left to get access to the button which is offscreen .I should not need to do this. Thanks to anyone that can help. This is a very irritating thing to deal with.