Screen preloading

Hey everyone, thanks in advance for any help.

I am wondering if it is possible to preload a screen. Basically I have a login setup using screens. When the user enters a correct username and password, I would like the application to proceed to my main screen where the site exists. This works fine if I simply change the visibility of screens. However, I would like to create a way where the main screen is not loaded initially. After the login, the main site is preloaded and then becomes visible. Is there a way to do this using screens. Thanks