Windows 7 windows 7 not connecting to internet

[M5820]

i have installed windows 7 on my computer and it will not connect to any internet connections

 

[M5820]

i have just installed the rc of windows 7 this morning and when i log on it doesnt have any inernet connections and i am connected with a wire

 

[M5820]

it did not work but it said that it couldnt find drivers for it

 

[elite]

I have the same problem, but my network adapter is on board, i think. My motherboard is a Micro-star Ms-6575. In vista or xp i dont have any problem, My build is the 7264.