Yeah, it has to be memory. I doubt the rules or the game is wrong, but perhaps Yuri's Revenge was designed to only support 80 or so unit strings in the sidebar. i am sure my comp. meets the specs in the manual. I also have installed the patch.
I have a small army of beta testers but half of them disappeared - something about them being too busy. They're just lazy
well anyway, I will test on another machine and if the same bug occurs, I'll tell you guys. It would mean that I have discovered a rare and obscure fault in Yuri's Revenge!
So watch this space!