PC "No Suitable Graphics Card Found" suddenly appears when I try to start the game

[DippyDerps]

I have 790 hours on Terraria and have never seen this message before, the game would run flawlessly every time I launched it. Now all of the sudden when I launched the game today, I got the message "No suitable graphics card found. Unable to create the graphics device." I already tried deleting my config.dat file, but that did nothing. Also, I downloaded and used TEdit yesterday to fix a problem with my world, and that's pretty much the only thing I've done differently in the 790 hours I've played.

Does anyone know how to fix this problem?

 

[Marcus101RR]

Goto graphics control panel and change the graphic priority to terraria for that specified card.

 

[MRclaudione99]

Goto graphics control panel and change the graphic priority to terraria for that specified card.

And how to do this? Sorry but i'm no an expert in these things, i opened this: AMD catalyst control center but now i don't konw how to do that you say