Here is a fix I found for the black screen glitch/crash for Sins of a Solar Empire: Trinity, that I posted on steam

I found a Possible Black Screen Fix.
(Note: I am Using Windows 7 64 bit)
Go To C:\Users\"Your Username"\AppData\Local

Now delete the Ironclad Games games folder. I am unsure how it fixes this. As I deleted the whole file without testing what file(s) or folder(s) is doing this. Dont forget to back up your saves!

Note: Appdata is a hidden file so u will need to type it in the address bar manually.

~Good Luck~

Not sure if a fix was found but the only other one I saw was the one where you start the game from the .EXE