Well, I'm quite frustrated, and I feel like a complete moron. I simply cannot get anything to work.
1) My printcsreen key does absolutely nothing, in any circumstance. I hit it, alt-tab, enter paint, which was already running, and there is nothing to paste. It's npt lit up in the dropdown menu, and ctrl-v does nothing.
2) Irfan view doesn't want to do anything. I reassigned the capture option to shift-F12, and it does nothing in Civ3. No file is created, and I can't see anything in Irfanview itself.
Thanks for your help, but I'm about to say screw it.
Joe