Howdy,
I have no performance, or gameplay issues at this time, these are my specs, and a recent experience.
I am running Vista DX10, 6GB PC6400mem, AMD dual core 6000+(no idea what the ghz is on that one), ATI HD 4890, newest drivers, on-board sound (no idea what drivers) And Elemental 1.06 hotfix. 1920x1200res, AA x4, low shadows, numerous groundcover, depth of field:unchecked(don't really know if this helps or hinders).
I hope that is helpful, if there is more info i can provide I will. I used to be more literate in tech lingo, kind of rusty now.
I started a new game this morning and played for a few hours. So far no problems.
After founding a second city, I got a random encounter threat but the AI never followed through. Perhaps they were just pointing out my main city was undefended, which it was.
My opponent came to me to do some negotiating, we signed a non aggression pact that was to last for 99 turns, works for me.
I opened up Observers early on which solved all my combat worries, and they operate in a cohesive group now.
My borders are about to come together, i am hoping i can annex the secondary city into my main, that would be cool.
Researching is a blast, I forgot how much I love city building, and I am really enjoying the art style for this game.
So far I am having a painless,and enjoyable experience