Built-In Wireless Card is not working

I have a Lenovo 300 N100, Type 0768-6EU.
The built-in wireless card appears to detect wireless signals, when I am in an area that has wirelss like my home.
But when I click the wireless icon in the tray on the lower right hand corner of my screen i.e "View Available Wireless Networ",
the Wiresless Network Connection pop-up appears, but it is empty. No signal is picked, and no wireless network is listed.
What should I do to fix this?
Thank you.
Tony

You need to click on the option "Refresh" located on the left side column. Normally, it should connect automatically if it is configured already but from time to time connections needs to be refreshed.
If it does not solve, try the solutions found in the link below.
http://www.intel.com/support/wireless/wlan/sb/CS-025332.htm
Hope the above suggestions help.

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Good morning rv9a.
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