Game Save Loading Bug, or Just Me?

[Kodos]

This is with the Demo 0.99: I've started up a few games, but this is the first one I've gotten very far in --- about turn 75. This is where the weird stuff kicks in: I'm experiencing slow-downs in the game during turn processing, closing pop-up function menus leaves a black rectangle on the screen for about 10 - 15 seconds, and loading my save game takes an interminable amount of time --- something over five minutes (I haven't managed to sit around long enough to time it!).

Now, I am sure the CD Music option is set to off, so what is it? Memory leak? This was after I'd been playing for about 3 hrs --- but even after restarting my computer, it's still lagging... This is with a PIII 600 w/128 megs.

Anybody else?