proprietary drivers

[hirohitosan]

hi there. I just installed Ub9.10 and I cannot activate NVIDIA gr. card. I'm connecting to Internet through a proxy server. I set up System>Preferences>Network proxy, I can update and use Synaptic but when I want to activate NVIDIA the driver isn't downloaded:

Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/n/nvidia-settings/nvidia-settings_180.25-0ubuntu1_amd64.deb Unable to connect to archive.ubuntu.com http: [IP: 91.189.88.134 80]

How can I fix that?

thanks!