Vernal cooper said:
lol only thing is i don't have another pc to test it on i'll prolly have to get a cheap gfx card to test it in my pc
Do you have any friends or family members who are willing to let you test your card in their system ?
Even while it is in your own computer, try running Furmark/OCCT or a game in windows and see if there are crashes. Usually these stripes/lines indicate GPU failure. Have a look at this page:http://www.playtool.com/pages/artifacts/artifacts.html
and try to match your artifacts with the examples to see what kind of potential problem it might be. You can also take the card out and clean it up with a vacuum/pressurized air can.