Fedora Hardware :: Intel Wireless 3945 ABG Not Working?

I have an Intel 3945ABG WiFi card in my Laptop (Dell Inspiron 6400). The problem is that I'm not able to get my card detect the Wireless Network. I'll list the prolem more specifially below. O.S. Fedora 12 x86-64

1. The Network Icon on the Taskbar (is it what it is called here in Linux??) shows Wireless is Disabled under the Wireless Networks. Wired Net works fine.

2. If I goto System->Pref->Network Connection the Network Tab is empty.

3.Under System->Admin->Network Config I can see two Devices; one is eth0 (active) with a checked check box. Second is wlan0 which is Inactive and has a checked Checkbox. The Activate and Deactivate buttons are disabled for both these. If I go and see in the Properties of the wlan0 it says controlled by Network Manager checked but the Network Manager comes up empty.

4. This forces me to remove that "controlled by network manager box" which enables the activate and deactivate buttons. Now I can Activate my wlan0 adapter and the light on the Laptop for WiFi starts up. During startup (activation I get this error in the pop-up box:

Error for wireless request "Set Mode" (8B06):SET failed on device wlan0 ; Invalid argument.). But the popup eventually closes auto. The Network Config box now shows it active but the Taskbar Icon still shows Wireless is disabled. And still the Network Connections has an empty box under Wireless tab. I donno what to do next. The card worked fine with Ubunto 9.04, openSuSE 11.2 (both 32 bit btw) and Fedora 11 again 32 bit.