Getting this as well. It seems to be because the item doesn't disappear from the menu until you build the next building.
Shermyth
I have had this happen on several occasions. Sometimes it's just the sound in tactical battle that it's missing. I will watch for when it actually happens. I am using a non sound blaster card. It really rocks and doesn't have any of the clicking issues that sound blasters have. HTO Claro Windows 7 64bit
The next update may fix it. I mentions a memory leak on 64 bit systems. I was able to complete smaller game today. We shall see.
I am having the same issue. I have no solution for you. But I am trying to reboot and try again. Edit: still going on. Rebooted and even tried an earlier save. I get about 3 turns and it crashes again.
I have a game right now where I can't move anything or go to the next turn. It's not long after finding the obsidian wall. I decided the way to get by is take my army to the other side by sea. Every time I try this it stops working. I have gone back to previous saves and it does the same thing near this point. Edit: I just rebooted and went back one more save and it did the same thing.
It took me 2 hours to figure this out. It's not intutive at all. The same with several other parts of the interface.
Is there any way to do this so it just becomes available for him to DL? I am tired of playing Sins with him and not having star bases.