Help, is this a bug?

[digilaw]

Hello, I'm new to this forum. Its great that this place exists I love the internet. I really enjoyed Call to Power and just got Civ three last week. I may have run into a bug. I did a search but came up with no similar posts. Its about 1000AD I am playing the Persians at Monarch level. I have the newest patch (117f, I think). I just discovered Theology and its been around 6 turns since I discovered Monotheisum. I cannot build a cathedral. It says clearly in the manual that Monothesium goves me Cathedrals. I thought maybe I needed to wait till I got Theology. Well I got that now and I still can't build cathedrals. I can build the Sistine Chapel but no where on my build list does it say cathedral for any of my cities. Is this a bug? Do I need a certain resource or something ot build cathedrals? It dosen't say anything extra is required in the manual. Help? Thanks.

[Gramphos]

Cathedrals requires Monotheism and temple (in the city).

[digilaw]

Thanks for the response. I will check for temples when I get home.