It seems like this is a general bug or something graphics card based. Sometimes i get 60fps (perfect vsync without hiccups) and sometimes it locks at exact 50. If i go below 50 with my framerate setting it follows.
-Chrome, firefox,opera & explorer, and all have that 50 fps cap.
-HD7850 on my desktop: 50 fps cap
-Changing the screen refreshrate to 50: vsync is now perfectly smooth with the 50fps cap
-Intel HD3000 graphics on my notebook: everything works as it should and i get perfect 60fps vsync