It could be a virus. It happened to me some time ago and it was coz of a virus. And even though i managed to get rid of the virus the problem still remained until i reinstalled my OS:(
ive heard abt it. But is also has a cost assosiated with it (@ least it did when i 1st found out abt it)
go to the dialog web site. It should have mo info on it
HP / Compaq series Notebook laptops are good. (Im using one)
A fairly good laptop will be around 1-1.5 lacks.
But u can negotiate the prices by remving or adding partrs.