Thank you! Crap.. the reason my response came so late is because it seems I was never notified of this reply. I think I've found the reason for why I never saw Opus open the last accessed folders.. the setting you pointed out was already set when I checked. I tend to open Opus using Winkey + E, but I think that's what the problem is. Winkey + E opens the specific folder "computer" each time.
Can I assign a keyboard shortcut to fire up a new lister? Basically, I want a keyboard shortcut to emulate double clicking on the Opus tray icon.
Dumb question.. of course I CAN. There even is a default for it: Winkey + O. Yay!