I am running Windows 7 64bit retail on an Intel DX58SO2 extreme mobo with i7960 CPU and Corsair SATA3 SSD hard drive, with 12GB KIngston DDR3 1300 RAM. The mobo comes with a module that connects to an internal USB header which runs Bluetooth and a WiFi 802.11bgn wireless adapter. I had used Bluetooth without problems for some time, but just recently decided to install the WiFi adapter for the first time. It said it had installed successfully, and showed up on Device Manager as working properly. However, it could not detect networks, and in particular, the WiFi external modem/router on my other PC. After exhausting all possible solutions, I decided to load a bare bones installation of Windows 7 and it installed and ran perfectly in this environment. And it continued to run OK after all my various programs were loaded. However, as a test, I uninstalled it from the fully loaded OS, and then successfully reinstalled it. But once again, it could not detect networks despite Device Manager saying it was working correctly. So it seems the only way to get it to work is to load it on Windows before any other programs or updates are added; and never uninstall/reinstall. I also had exactly the same experience on my other PC which runs Vista Ultimate OEM. I was using a Belkin N 300 adapter on this OS. It could only be loaded and run successfully on a bare bones installation, but once running, was OK even when all other programs were added. Has anyone got any suggestions on how to fix this problem?