Brought Toshiba Satellite C850-P0011.

Installed Ubuntu 12.10 along with Windows 7 in Windows Wifi is working but in Ubuntu Wifi is not working even LAN (Networking) is also not working.

I have been working in Ubuntu for past 6 years, but i never found problem like this before. Please someone help me out, i can't install other software too because of this problem.

Give me a link so that i can atleast enable my Wifi.

Thank you in advance