Hi. I have a computer wich gets dotted multicolored vertical lines as soon as i start the computer. As the Vista installation is corrupt, i would like to run ubuntu from a USB, to move all important files away from the pc. The problem is that when the install screen in ubuntu shows up the vertical lines is so intense that i cant see a thing. ( the lines are there when i am in BIOS too). I managed to see enough to install Ubuntu one time, but then i was so stupid that i put in a corrupt usb to copy the files to, that the computer stopped up. Now i cant see anything when the Ubuntu instalation comes up. Before that it is varying from time to time how many lines there is. Anyone knows how to deal with this problem?