Hi,
Just purchased a DWA-131 "minuscule" wireless usb adapter. Downloaded latest driver from Dlink for Windows 7 64 bit OS, it was version 1.20 I believe. Installed and connected quickly to my router. I disabled the on-board adapter. However, multiple speeds test never get over 7.15 Mbps, while a Netgear Wireless N gets 11.65 Mbps. I have 12Mbps DSL. Any ideas or help appreciated!