This has happened every single time I've had to leave the computer with game on for roughly 30 minutes or more (three times). After coming back and pressing the 'turn' button, the button will disappear and nothing happens for a good time. Then it suddenly executes the turn command and I get to move again. This happens repeatedly but it feels like the button is disappearing for longer and longer every time. When the button disappears I can still move around the map and do everything I want, the turn just doesn't end.
This time I tried saving and then loading the game, but it crashed.
1.0X.010
Win XP Pro - SP2
All-in-Wonder Radeon 9800 128MB- Catalyst 6.2
P4 2.8 GHz with HT
512MB