I have an omnibook xe3 gf model with a problem which seems very common. The computer will turn on for about 20 seconds and then immediately power down. The fans spin up for about 5 seconds. Nothing appears on the screen and only very occaisionally do i hear the HD spinning. Unfortunately this seems to be a common problem with the omnibook xe3 models. I have seen many people with this problem but there are no answers that i can find. Does anyone have any idea what is happening?