I did a search and don't even know if this is a real problem or a warning.
I have an 08 Dell D630 with Win 7 and it works just fine. No problems works great for what I need. I use it mainly for WORD and internet research and it is usually on for 12 hours a day with 2-3 hours of sleep time. It also has a nice cooling tray with fan and it never gets warm.
BUT. I have noticed for quite some time that when I power-on I will get these cute pink and turquoise horizontal lines at he very bottom of the display while the display is black, in the place where the task bar would be. I might get 2 or 4 little lines that come and go at start-up. They shimmer and put on a little show until the wallpaper and icons load and task bar appears in their place. Then they disappear. No problems.
Is this normal? I did a Google search and it was....meh.