I am having a problem with a Dell D630 laptop. It works fine until after about 1 1/2 hours when the screen goes all patchy - can see some parts but not all. I can't get windows to display properly or any other programs. Whenever this happens there is a message that appears but I can't read it - I click the ok button (can just about see this) and the message goes and then comes back,
I then have to reboot the laptop and it works fine again for an hour or 2. At first I thought it must be a hardware fault occurring once the laptop had heated up but not sure now as works ok after a reboot. Now I'm thinking it must be the OS instead but don't want to reinstall without being sure.
Anyone got any suggestions with this and the best way to go about troubleshooting. Would it be worth me speaking to Dell first?
Thanks for any help.