SinningEagle

Thank You for the response.

Ok, I'm a little confused. I pre-ordered Rebellion from Stardock in Sept. of '11. When I get my code for the expansion, will it only be for Steam, and not for Gamestop? I currently have Sins of a Solar Empire Trinity via Gamestop(Impulse when I purchased a retail copy of the game), will I have to purchase Sins again on Steam in order to enjoy the Rebellion expansion? [e digicons]

Yes it is. I went to the web page you posted, It states that it is compatible w/ 32 bit and 64 bit.

I'm having the same problem. I'm not using any mods and I only started playing the game after all the updates were installed. No previous plays prior to any updates.