Firstly, I run Civilisation using D-Fend Reloaded as a front for DOSBox on a 64-bit Windows 7. (I was too young when MS- DOS was actually used to use it, and I do not know how to use DOSBox on its own, either.) This glitch has not always happened; I have played Civilisation for months. Oddly, though, yesterday and to-day, if I try to play Civilisation something odd happens. I have tried to play thrice, always as the Germans. Twice, my science advisor never appeared at all to let me select a technology; another time, he only shewed himself three turns after the game started. I do not know what is causing this or how to fix this; how may I get the game to function again? Re-starting my computer does not help.