TS2771 LCD screen shows double image, is this hardware or software?

I have a 4th Gen iPod Touch that shows a double image on the LCD. About a third from the bottom of the screen you see the screen image repeated. The iPod was never dropped so I don't know how this damage occurred.
I plan on replacing the screen, but I am worried that once I do, the problem won't go away. Has anyone seen this before? Do you know if the problem will go away with a new screen? Is this a logic board problem?
Thanks.

Try the following to rule out a software problem:
- Reset. Nothing is lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Restore from backup
- Restore to factory defaults/new iPod
If still problem then it is likely a hardware problem.
I have no idea if it is a screen or ligic board problem.

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Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
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http://dl.dropbox.com/u/2128201/mbp1.png
http://dl.dropbox.com/u/2128201/mbp2.jpg
http://dl.dropbox.com/u/2128201/mbp3.jpg
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TS2771 LCD screen shows double image, is this hardware or software?

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