hello. I also have a similar problem. I have a dell E520 with windows vista home premium and it freezes every now and than for about 20-30 seconds. I have contacted a few techs who have told me to do the following. delete temp internet files, run a 32 bit diagnostics test which i passed 100%, and clean install vista. Which a clean install did not work, and now i cant get the windows xp back that dell sent me from the factory that was originaly on the computer when i received it. Finally i called dell again and I got an american this time! yes! nothing wrong with the other guys except they treat you like freaking idiots. He had never heard of this issue before, so i infored him if he were to look online that he would see many cases. which he did. But after haveing me install new drivers which did not help, he informed me that there was nothing we could do. He said i would have to wait for an update for it, and that i have the option to go back to xp and wait. Thats what I did, so here i am on windows xp again. waiting. If anyone can help me at all please do. Thank you oh and ps. dell guy yes the whole screen there is no response from anything!