Just to be sure - do you have the latest driver from Intel?
http://www.intel.com/support/chipsets/sb/CS-022034.htm
I have same chipset on a different laptop with no issues.
Is the Dell still under warranty?
"Spinoza" <Spinoza@discussions.microsoft.com> wrote in message
news:C3954AF8-F1D1-47FA-9EFE-A10DC0621797@microsoft.com...
>I have a dell laptop with a mobile intel 945GM. When my laptop is on
>startup
> a black line appears moving up and down all along the screen, i uninstall
> the
> driver and the problem was fixed but the resolution was awful, i reinstall
> the driver and the problem appeared again. I tried with a desktop monitor
> and
> the problem is still there. What can i do?