Hi, my laptop is an Acer 4551g with Acer Nplify 802.11b/gn as the connection chip. I've just installed ubuntu 11.04 today and when i got to the connection column, it greyed out my Wireless Networks and said that wireless is disabled.

The Ubuntu dual boots with my Windows 7 and the connection works perfectly fine on Windows 7. But once it got onto Ubuntu, the wifi led just goes off and never comes on.

I'm new to Ubuntu but i really wanna learn how to use it, so please can someone help resolve this problem?

Thanks in advance!