Alright, new laptop (windows 8, vs2012)
two graphics cards: Intel HD Graphics 4600 and NVIDIA GeForce GT 750M
same error for intel graphics card, but no error with geforce!!!
What exactly is causing this?
If I was gonna write a game with SFML, I don't want to restrict the game to more powerful (or whatever the reason is) graphics cards just because of this bug :/