This expensive notebook hardly lasted two years and then broke down because of a manufacturing mistake: components on the motherboard are insufficiently isolated, get overheated and burn out.
Read the posts on the HP forum about this issue:
HP dv2000/6000/8000/9000/tx1000 Video Problems
DV9000 Video Chip Failure; LCD not working & system will not boot
HP Pavilion dv9000 (and others) Overheating Damage/ Motherboard Failure
This system was running Vista Home Premium SP2 and suffered since the beginning of poor nvidia driver support.
Warning to all laptop users:
HP Laptops suck ! Don’t buy them.