Windows 7 slow network

I have an HP xw8400 workstation 2x xeon 3.0ghz dual core 24gb memory gigabit network. Windows 7 ultimate. Network transfers are very slow under Windows 7 , Running Roadrunners speed test .79meg download 1.80mb upload. Upload speed is fine, but download shoild be 10meg plus. I tried under several browsers with same results. Now the kicker Vmware workstation is running on this machine with a server 2003 virtual machine. If I go into the virtual machine and run the same speed test I get download 10.0meg plus download 1.8meg upload as it should be. There is only one nic so windows 7 and the virtual machine are both using same nic, cable, router and firewall. Also if it was a nic problem I would expect to see the upload speed suffer too but it doesn,t All other Windows 7 machines on the network are fine. Up to date on all patches. Any Ideas???