Desktop distorted after installing Nvidia drivers

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http://askubuntu.com – I just started using Ubuntu for the first time about an hour ago so please bear with me. Prior to installing the Nvidia drivers the Ubuntu start-up screen is completely distorted(black screen with garbled graphical blocks). However, from the Log-in screen onward its perfect. Bright colors, crystal clear text, image fills the entire screen. Display is properly detected as an HP TV in Ubuntu Display settings. Now, after installing the Nvidia drivers the Ubuntu boot screen shows up normally. Upon reaching the Log-in screen we run into trouble. The image only fills about 85% of the screen(doe (HowTos)