This is my first DELL PC and definitely the last one !!  I had always Compaq and was happy -really don't know why I fell victim to this POS. I I don't get a white screen it is a black one, turning it off and it turns back on again, putting it into sleep mode and it comes back on again, so I will get rid i=of this POS and purchase a new Compaq again.  In all the past years I replaced my desktop after 4 to 5 years and this crab will not even last one year.  Talked to my banker as I saw he has a Dell on his desk and he reported the same -white or black screen and he is as unhappy as I am but he has not the power to do what I will do, getting rid of this piece of junk.........