I thought I'd give CtP2 another go. It's been a few years since I tried it last (when half my cities had negative population... I have no idea....) and when I started it, there is unbearable lag in the main game screen (there is no lag in the menu screens, even if the menus are over top the map). I also remembered the AI being stupid, and I thought I'd try the apolyton edition. Now the game is even more unplayable. I can get over no music, I'll just play it myself, but there is EVEN MORE LAG. And now the lag happens even in the menus. I could probably find a solution eventually, but I'm wondering if anyone knows of a solution to either lag problem. It's made the game essentially unplayable.

By the way, I can run a virtual machine with Win9x or XP, so if that's needed, I can do it, but it's not really preferable.

You didn't even tell us what you're running in terms of spec.

Yeah, I realized that when I went to bed last night. Sorry about that.

Win 8.1 64-bit
AMD Phenom II x6
GTX 580
8 GB RAM

That should be everything necessary for this, my sound card shouldn't matter nor other programs. If you need the DXDIAG, just ask.

I wouldn't need it, but the GOG staff would be needing a copy for a support ticket. Others need the info for helpful diagnostic information.