HP's dvxxxx series is screwed up. I had some kind of dv9000 and it fried on me last year, something related to the power consumption. HP had built the model wrong, and so the warranty was extended, and I received what was essentially a replacement. This year, just a week ago, the same issue happened, but this was with the hardware "fixed," and the warranty didn't cover it. In the end, the two computers only lasted almost four years, but didn't quite make it.
My roommate got a later dv version, likely the same one you have, stevey, back in, let's say... 2007, and his video/graphics card (by nVidia,) melted on him, as well. He said the computer was out of warranty, and nVidia said that HP was supposed to cover all defective hardware, while HP said it wasn't a problem with their hardware, so it was nVidia's fault. In the end he got it repaired, and his family uses it. He wound up getting a pretty good deal on newegg for an acer aspire, and I did the same thing when mine broke, as well. I'm happy with it for everything except Vista, which is probably the worst OS you can imagine, almost as if MS wanted to see how many ways they could annoy a user.