Clients (netscape) and TCP_CLIENT_REFRESH

Hello everyone,

I have a dumb question:

Does anyone know of a way to keep browsers from forcing
TCP_CLIENT_REQUEST every time a link is clicked again?

For eg., Netscape exhibits the following behavior:

A page is retrieved by the client an goes into the cache
If I click on the "back" button, I get perfect TCP_HITs
If I click on the bookmark to the same link, I get TCP_CLIENT_REFRESH

Is there any way around this?