Wireless disappeared? Says "No hardware for connection"

[Pif_4e]

Hi guys, I have a Sony Vaio model VPCM12M1E and the wireless just disappeared. It was missing some drivers, I installed them and the wireless was working until I switched it off. When I switched it on again it says I do not have the hardware for the wireless. The wireless is switched on and the light is on, the driver that was missing before is there. I really don't understand what's going on here. Can anyone help me? I will be very grateful! Thank you!

[garlangreeny]

Try to remove and then reinstall the driver for your wireless connection. You may also try to rollback which I may find working most of the time.