I have an HP Pavillion notebook zd7380us with a nvidia geforce fxgo5700 128mb dedicated memory, 1gb ram. OS windows xp media center edition 2004. Problem started by games crashing, updated drivers, nothing happened, later I got every time I turned the computer on some white dots and vertical color lines on my screen as soon as I start the machine, meaning on the BIOS first screen during and before the HP logo comes out and during and before the OS screen comes out, then when is about to log in the screen goes black, and I have to turn the laptop off manually, I can restart the machine on safe mode and if I disable the display drivers I am able to log in in "normal" windows,(of course with out the benefits of the graphic card) as soon as I enable the display drivers again from the graphic card, the computer screen imidately goes black and wont acept any command. I have try from reparing and reinstalling the OS clean the HDD by using killdisk, I have upgrade the BIOS, and still nothing I got the same look on the screen(white dots and vertical lines) even while I am updating the BIOS or on DOS mode screen, I have been told that it might be some kind of garbage on the video memory, so this is my question, Is there a way I can clean, wipe or format the video memory??? or I have to send the laptop for hardware problem review? I would really apreciate your help. Thanks, Dan.