How to fix black horizantal black lines on 2010macbook pro 17' screen?

Hi everyone!
I come to the community for help after  looking everywhere on the internet. I've had a problem now with my computer for a while where these strange black lines (always horizontal in nature) appear on my screen. I have two pictures below:
http://i1250.photobucket.com/albums/hh521/violentfirebomb/blacklines02_zps5de5cc 51.jpg
http://i1250.photobucket.com/albums/hh521/violentfirebomb/blacklines01_zpsfe260c 8d.jpg
These black lines will appear out of no where and they won't go away unless I select whatever is there and move my mouse. If it's across some font, I can select the font and easily go over the black line and it'll disappear.
Also, the more permanent things is random drop shadows from open windows won't work or the shadow won't work in places. Sometimes the font below a folder or above an icon on my dock will just be gone, like a chunk of it missing the size of those black lines you see in pictures above.
Is it something I can fix? Should I take it into the genius bar? My computer is a 17' Macbook Pro from 2010 and I'll be honest, this never happened until I upgraded to Mountain Lion. I even reinstalled Mountain Lion but the black lines and random text as well as drop shadow disappearances have returned.
Let me know what everyone thinks!  I'd like to solve this mystery as quickly as I can! Thanks in advance.
Leslie

When you have problems with the display, there are usually three possibilities:  The wire connection is faulty, the display is faulty or the GPU is having problems.  All are are hardware issues that cannot be solved by software and generally do not fall into the do it yourself category.
Ciao.

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