Dell XPS 420 an 9800GT Nvidia video card. Computer will be fine then all the sudden i get all of these lines and weird colors at top and bottom screen and computer freezes. I reboot and all through the splash screen and where i enter password i have weird lines and shapes. When the logo comes up i have a double of it on side of the screen but its all distorted. Right when Window goes to load my monitor goes dark and just get the orange lite on the monitors on/off button. When i again reboot and go into safe mode i still have all those wavy lines and if i move the mouse around the screen it clears it up some. Its like im getting interfernce on my screen. Now ive disabled through Device Manager my video card but still have the issue. But i dont always have this issue. Right now its working but then after awhile it just hit and freeze computer. Talked to Dell and he just did the updated Drivers for Video card which i did a week ago. He know wants to reset my computer back to factory settings, which sucks cause i lose all the video's i have. Is it my Video card going bad? a Virus or something else? Please help before Dell talks me into something stupid.