If the unit's name in the Unit Button on the left side of the window is followed by a "C", that unit has been in combat since the flags were cleared.
If the unit's name is followed by an "H", that unit is currently hidden from the view of other players. Units which are hidden will not display the "C" for having been in combat.
If the unit's name is followed by a "D", that unit is currently assigned to a declared combat. The only way to clear this flag is to resolve the combat.
To clear the "C" flags, select the menu item:
Copyright © 2010, Sean Emerson
Created with the Freeware Edition of HelpNDoc: Easily create Help documents