It worked, but I want to play it with steam ingame that's why I bought it on steam.

Where do I contact them? And thanks for your help.

My game crashes too, only it crashes about 10 minutes into any game that I start. There's also a black square that glitches around my mouse cursor when I move the mouse. The game runs alright for a few minutes once I start, but about 5 minutes in the screen flashes black briefly, and then ten minutes in I hear a noise like a desktop error and my game crashes and a window says "Sins of a Solar Empire:Diplomacy has stopped working." Does anyone know what's going on? It's not a graphics issue, so I'm guessing it must be a seperate program or is this just a notorious memory dump? I have SOSE: Trinity v1.37

-OS: Windows 7 Home Professional

Graphics Card- Intel Core i5-2450M @ 2.5 Ghz

32-bit operating system

For the OP, restart steam by using the "run as administrator"...sometimes this helps people who can't run it through steam but can run the game straight from it's own exe...