Thanks so much for taking the time to post these instructions. I built an AMD 64x2 machine with Vista Ultimate 64-bit edition, using an older Linksys WMP54G Version 1 PCI Wireless Adapter. I followed your instructions and found the correct driver under "Ralink Technology Corp" (the first Ralink option listed in the driver update utility), and it was the first driver listed there.

A couple of other tips to add: If you don't find the correct driver right away (you get an Error 10 Code), be sure you go back and uninstall the incorrect driver. Then click on Actions, select Detect Hardware Changes, and you'll get back to your original Device Manager configuration with the Network Controller listed again under Other Devices. (When you install an incorrect driver, it will show up under Network Adapters and the original detection under Other Devices will go away.)

It wasn't necessary to browse my computer for the driver software, btw; I simply selected the "Let me pick" option.

The driver installed beautifully and the Ralink utility works flawlessly. Considering the limited options for Vista wireless adapters (Linksys doesn't even offer Vista updates), you've given this card and my new machine a whole new lease on life. Thanks again.