Just loaded a saved game and after a couple turns got "page_fault_in_nonpaged_area" blue screen of death.

Rebooted, tried again, got same error at same place.

No other changes to my system recently other than installing Colonization.

Been playing for about a week, never got the error before.

thoughts?

I get it occasionally. However rebooting and continuing from autosave does not cause it at the same point...
It usually strikes when the Diplo Screen opens...