I replaced Windows XP Home with Windows 7 Ultimate on one of the desktops at home and now the Linksys PCI Adapter with SRX (model WMP54GX, version 1.0) is not detected. The device manager does not see it. I installed the driver from the original CD and still nothing. I've looked all over for a solution but have not been able to find anything. There is a thread here that referenced the WMP54G model but there is no solution offered. Has anyone run into and solved this problem? Thank you in advance for your assistance.