I would like to use linux on an old PC that was lying around my house. It was running XP, but VERY slowly and was full of malware. So I wiped the drive and installed xubuntu. It installed and is working fun, but the screen seems to tear and stutter whenever I do anything other than stare at the desktop. I believe this is due to no video driver??? It is a Gateway GT5028. Any guesses and/or links to fix my problem? Will reward with best solution