And those drivers are plain awful, lots of issues with my card.
Then I don't know what is wrong with your GPU. The game should recognize your 650 as a compute device for OpenCL. And I don't know why you're having trouble with the latest drivers, I have them on my GTX 770 and they work for me, so they must not be THAT awful. But who knows... :P
I'd hate to say this dreaded phrase, but your card could be going out. First, what I should say is, how long have you had it? I guess that doesn't really matter, never mind.
There is one last thing we can look at, and that's the output log the game generates every time it is launched. It logs the current session and outputs it to a text file.
It can be found by going into: Steam/steamapps/common/Universe Sandbox 2/Universe Sandbox x64_data
There should be a file called "output_log." This is the file that logs the current session. You can attach it to this thread if you like, as a dev might see it and be able to help you out. More often then not, these logs help pinpoint where a problem is so Giant Army can fix glitches for future patches (and help anyone who can't get the game running).
Hopefully you can get your problem solved, this is quite a cool simulator, and it would be a shame to miss out on it because of technical problems.