HP's created a support page, which says:
Some of these computers may not boot or may not display video.Sounds familiar, doesn't it? The list of PCs consists of models with IGPs on their motherboards. HP's only solution so far, is to up your warranty length by 12 months:
This program provides for a motherboard replacement at no charge for 12 months from the date your one-year Hardware Limited Warranty expires or until December 31, 2009, whichever is sooner.Now, for those concerned about Apple's move (announced Tuesday) to NVIDIA IGPs and chipsets: don't bother worrying. Those should be built with the newer bump material NVIDIA has changed to and shouldn't have any issues.
On the other hand, if you have an already purchased Apple desktop, you might want to take note: The Inquirer says that it has memos allegedly from an internal knowledge base at Apple which states that all of NVIDIA's parts based on its G92 architecture sent to Apple have had to undergo the same change in bump material I noted earlier.
Of course, the source is The Inquirer, but still ... if true, it could mean the NVIDIA "problem" is as widespread and deep as the financial crisis currently enveloping the world. Now wouldn't that be lovely.