Chuck:
My take on layouts vs. styles and other visulaization control mechanisms in Opus is summed at the bottom of this thread:
[url]Preferences]
Earlier in the thread there are also other links to recent topics where some confusing results might be encountered when using one or the other of layouts, styles, and folder format/options were discussed if you don't realize the hierarchy involved as well as what you've set Opus to do when launching a lister ('Lister' is just the name Opus has for the window that pops up when you launch Dopus from a shortcut, tray icon, or dbl-click the desktop).