Preview app doesn't close windows. HELP!

[Architorture]

I've been having this problem with Preview for weeks now. It always opens certain (not all) files I've worked on, and it won't close the windows. I have tried cmdw and cmdQ and nothing works. Is there a way to reset Preview? HELP!?

 

[simsaladimbamba]

What Mac OS X version do you use?
Have you tried deleting "com.apple.Preview.plist" in Macintosh HD / Users / YOU / Library / Preferences / yet?

How to change the default application a certain file type opens with​

 

[Architorture]

What Mac OS X version do you use?
Have you tried deleting "com.apple.Preview.plist" in Macintosh HD / Users / YOU / Library / Preferences / yet?

How to change the default application a certain file type opens with​

Thanks, I just tried, did not work.

 

[simsaladimbamba]

Thanks, I just tried, did not work.

And what Mac OS X version do you use?
Does it also happen in another, even temporarily created, user account?

 

[Architorture]

Im using Lion, and it doesn't happen in another account.