Cannot enable dell intel 3945 wireless radio

[dmz940]

Hello, I have a Dell Intel 3945abg wireless. Its work great for the time I've been using it...until today. I have the red cross on the icon and it will not enable even though everything else checks out. I've uninstalled and installed the drivers and it is recognized...just will not connect.

 

[enkidoe]

trie systemrestore to restore the pc to an earlier time when the problem didnt occur.