Ubuntu Networking :: Wireless Not Recognized Although WLAN Works?

I have a Dell Laptop which worked very well also with the wireless card. In fact the wireless card was never an issue and worked straight out of the box. However it has lost the ability to detect the wireless networks. I have plenty of networks in my area and my little netbook shows them nicely. So did my Dell laptop in the past. But now the Dell laptop shows no scan results at all although the card seems to be up and running (see terminal output below) I have to add that I had to compile a module for the WIRED network card which works excellent I always use and used a wired network and cannot say when the wireless card stopped to work PLUS I had a faulty harddisk which was replaced by Dell recently so there could be also a hardware fault since then because the laptop was opened by the service people. And yes the wireless is switched on in the BIOS If I create a wireless network with the laptop the netbook can see it, so the wireless card is broadcasting

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