It will bring you to a new screen with probably two icons; now I can't say for sure what they'll be called for you, but one will most likely be "Local Area Connection" and may have a number, while the second will say "Wireless Network Connection". If this says 'Disabled' then all you need to do is right-click on it and press 'Enable' again. Voila! You have just turned on your wireless adapter without using the laptop's inbuilt button.
My Acer seems to not want to co-operate, OxyMoron, and ive got the window up now, and it's apparently already enabled - but still nada. The wireless works on everything else but this is seems :C
Have you installed the launch manager application as that's what controls the side buttons but that wouldn't effect the wireless card itself. Look in device manager and check to see if there are any missing drivers (post a screenshot if you like). You could also try uninstalling your current wireless driver and rebooting see if windows update will locate you a suitable one
I have tried uninstalling and re-installing the driver with no luck, and i wouldnt have the foggiest idea if something were to be missing
here are the screenshots-hope they help