I have a Compaq laptop and i was able to use wireless on it up to about the other day. Usually, when i wanted to use wireless i just clicked the button (external) and it would turn on (a blue colour). Now, when i press the button the light will not turn on and i have tried to search for the wireless networks and an error message comes up saying "make sure the wireless switch on your computer is on", so obviously the button wont work. Can anyone help solving this problem? PLEASE help .