It might just be that there is an update and it has to load the island again...and i don't think you can delete the proxy setings...I notice when i am loading google it will say "detecting proxy setings" so maybe just give it a minute.

Bypassing a proxy? you will need to login to the pc as an administrator and disable the proxy checkbox via

Control Panel > Internet Options > Connections > Lan Settings > Disable Proxy Checkbox.

I trust that's greyed out for you though, as if you're running through a proxy, its usally due to a network restrictions and/or filtering of traffic and the machine isn't yours.

You need to find some way to logon with either power user or administrator access to disable that.