Hello, Please post your Dxdiag and your latest PA log. From the looks of it, you're running MSI Afterburner or Steam beta is on.
The PA log is in C:\Users\YourName\AppData\Local\Uber Entertainment\Planetary Annihilation\log Your AMD drivers are from 12/6/13 and require an upgrade. Maybe that's what caused the black screen.
Here's the link to the drivers: http://support.amd.com/en-us/download/desktop?os=Windows 8.1 - 64 The beta drivers are at the bottom of the page.