ok there's one simple trick i haven't mentioned: after driver only install, windows 7 will disable the driver after reboot (RC) or right after install (RTM). so after you installed the driver, you have to reboot, and right before windows boots, press F8, so that you get access to the windows boot menu. then select to disable driver signing enforcement, log in, and run windows update. then it will install signed drivers for 7128g, reboot again normally, and everything's set.