Windows 7 networking trouble

[jnelsoninjax]

I'm using win 7 7001 as are 2 of the other computers on our LAN 1 is Vista Ultimate X64. My computer is connect via a network cable to the router, as are 3 out of the 4 computers (the 4th being connected via wireless) Now the issue: My computer can not access any of the other computers on the network, keep getting error message that says that the path can not be found. Now on the other computers, my system can be accessed, but I can not access any of them. I have checked all the network settings and Firewall (KIS), and still have nothing. I can ping the other PC's and get responses. Anyone have any advice of where to look next? I also do have an internet connection, I simply can not access any other computer on the network, and they all have shared folders!
I have checked the advanced network setting also, everything is set the way it should be!

 

[Hefemeister]

hey do you mean build 7000 or 7100?

have you checked that this computer is in the same workgroup as the other computers?

 

[jnelsoninjax]

It is the RC, build 7100 and we do not have any workgroups setup