I have an HP Pavilion tx 2000. It had Windows Vista on it but I just installed Windows 7 Professional. Since installing it, I cannot connect wirelessly to my home network. I can SEE the network but it says it cannot connect to it. When I plug into a the router with ethernet it connects to the network just fine. I've restarted the router, updated my computer and drivers. I know the network password is correct, I checked five times. I don't know what else to do. The router is a D-Link WBR-1210. My laptop's wireless adapter is a Broadcom 4321AG 802.11a/b/g draf-n Wi-Fi Adapter. Please help!