Windows look bent?

How does a window get like this? I've always felt these windows were crappy because they let a lot of sound in when closed. Can anyone describe what this is & how to fix it? Window open just a crack: Attachment 37414 (http://www.doityourself.com/forum/attachments/doors-skylights-windows/37414-windows-look-bent-imag0884a.jpg) Window closed: Attachment 37415 (http://www.doityourself.com/forum/attachments/doors-skylights-windows/37415-windows-look-bent-imag0886a.jpg)