Sites break using Proxy

[chrisjk]

okay, i've got a long list of sites I've tried to use but break or go really slow then just die through the proxy.

All I have is this computer which uses the connection to the net of another computer. It's standard windows Internet Connection Sharing, so why is it so fcuked up?

Anybody shed any light on this, it's seriously annoying.

Thank you anyone with any ideas!