One of the neatest things about Mac OS X Lion is its ability to restore the windows you had opened when you ended a computing session. However, there are those who might find this feature to be intrusive and annoying in certain applications such as Preview or QuickTime Player X.
No problem, here's how you can turn it off in Preview and QuickTime Player X.
1. Open a terminal window.
2. Type in the following commands:
defaults write com.apple.Preview NSQuitAlwaysKeepsWindows -bool false
defaults write com.apple.QuickTimePlayerX NSQuitAlwaysKeepsWindows -bool false
Make sure the apps are closed before you type in these commands. Switch "false" to "true if you want to turn on the restore feature for these two applications.
Four Lion Terminal hacks | Macworld
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