Older versions of nautilus (such as on Red Hat 5 / RHEL 5) don't have the option "Always use browser" under
edit->preferences->behavior. That option isn't added to the gui-based preferences menu until later.
This leaves you stuck only launching visual mode windows by double-clicking. This is annoying when you want to open the browser window but forget to do the extra step of right clicking and selecting "Browse Folder".
How can you configure nautilus to launch browser mode on double click if the "Always use browser" option isn't appearing?