Can't run Roblox anymore [Nvm, somehow fixed]

[strike]I just updated from windows 8.0 to windows 8.1 and now I can’t seem to enter a Roblox game anymore. It gives me the following error:
I don’t understand though how upgrading to windows 8.1 suddenly gives me this error. I’ve tried reinstalling the Robox player and I’ve been to the suggested link. I’ve reset my Roblox Graphics in Studio and I (think I) have tested my DirectX package (that .exe was a bit confusion for me as a failure at technology). Does anybody know what might be the problem and how to fix it?

Sorry if I posted this in the wrong place. Idk where I should put it otherwise.[/strike]

Turned out restarting my pc fixed this all. No idea why though.

Upgrade your video card drivers.