cfcgreg :
NVidia is famous ending driver support for their graphics cards. I had an $8000.00 Alienware laptop that I wanted to upgrade to windows 7. It was then that I found out that NVidia stopped supporting the drivers. Myself and a lot of others lost the use of perfectly good computers because NVidia wanted all of us to buy new graphics cards. I wish AMD would build faster cards and I would stop buying Nvidia in a heartbeat. Com'on AMD, start building faster cards than Nvidia and you will reap a windfall of unhappy in NVidia users who are tired of being jerked around by these greedy jerks.
I'm sorry but there is just so much misleading and inaccurate information in your post I had to reply.
1) Nvidia canceling driver support for cards that are 5+ years old isn't exclusive to them. AMD has often done the same and continues to do so.
2) If you bought an $8000 Alienware laptop with a GPU that was no longer supported, then it likely had a very old GPU and as such was also a very old laptop. If it was old enough that the GPU no longer had a Windows 7-compatible driver available, it was clearly well over the 5 year mark. (Also $8000 for a laptop is a huge waste of money) Windows 7 was released in July, 2009, meaning if your laptop was so outdated that there wasn't a driver available, then your laptop was built sometime between 2003 and 2005, roughly, making the GPU the least of your concerns.
3) You don't "lose use of [your] computer" due to a driver that's no longer provided. Windows 7 will support drivers for older operating systems in a number of ways. If your GPU was *that* old, then it's time to upgrade anyway. (which you could do like 3 or 4 times for the price you paid for that laptop)
4) AMD makes plenty of cards that can match up to Nvidia cards, for roughly the same price (usually less) - note that this is coming from a guy with SLI'd GTX770s.
5) Alienware is made by Dell. They didn't used to be, AFAIK, but either way, it's up to the OEM to provide drivers for their laptops and support them even after the GPU manufacturer doesn't. I can find Alienware driver support for Win7 on the Dell site dating back to at least 2010 for even the most low-end GPUs and prior to 2009 on the original Alienware site.