Exactly that, I don't even have the default dscaler codec installed even though I've installed the latest Orb 2 version (2.00.0867). When I go to Configuration->Advanced->Codecs, there is nothing listed, not even dscaler.
I have uninstalled and even used Orb's clean-up program afterwards, then re-installed Orb 2 and still nothing shows up. Since XP can't see any of these codecs either, I'm thinking there is something in XP itself that is wrong. I just have no clue where to look....