Windows 7: Laptop TOSHIBA L850-13p

Guys,today i bought new laptop (model in thread title) and laptop was without windows.I installed win 7 64x and i installed "all" drivers. When i go to device manager "network controller" is on "?".I cant install this driver. I went on toshiba's site and choosed this model and still driver doesent work.I think that is wlan driver cuz when i put ma lan cable in laptop internet works.I tried to install driver but i have message" driver not installed sucessuflly" .i rly dont know what to do :S I can try only with windows update... am pissed :S

Btw i also updated bios.and still nothin.