Project reset when mapped drive unavailable

Hi,

I'm using IntjelliJ IDEA 4.5.4. When I start it up it opens a project and finds the modules specified in that project. No problem there. However, if the server that holds the modules is down, then when I start IDEA it can't find them. But annoyingly, those modules are removed from my project. Which means when the server is available again, I have to add the modules, jar files, etc again - which is a pain.

Can someone please tell me how to stop it loosing references modules if a mapped drive is unavailable. I'm sure there is something in the settings somewhere.

Thanks, Jon