I'm reading through the reference manual. I am on the section about window buttons. They are enabled, but I am not seeing them on XP. What am I missing (besides the buttons)?
Do you use Windowblinds? They turn off automatically if it's detected to avoid problems with differently themed windows.
You can override this via the WindowBlinds Compatibility checkbox in Preferences. (Just type WindowBlinds into the filter at the bottom of the prefs window to find the setting.)
I set WindowBlinds to ignore DOpus, but I still don't see the buttons.
If WindowBlinds compatibility is enabled in Opus (it will be by default if WindowBlinds is installed) then the buttons are disabled.
That did the trick...