I just installed Ubuntu 11.04 today. I used to run windows vista but i got the blue screen of death, so a friend told me to install ubuntu. It was love at first sight, and i will continue to use this OS now. But lets talk about the annoying problem i have. I dont know how to explain it but i will try. On my screen there are many many blue slim lines that travels fast from top to bottom all the time, they move fast and messes up the graphics, I have tried to search the problem on google but i have no idea what the search for. But all I can say is that its these flickering slim blue lines that are constently moving and flashing, i can see them very clear the darker the screen are. If someone can help me I would be very grateful.
Btw, when I take a screenshot of the desktop the bug does not show in the picture.
Here is a picture-link of the problem:
Awesome forum btw!!