This has something to do with Nvidia driver actually. Rolling back far enough e.g. 355.60 (haven't tried all versions in between) seems to work. Haven't been able to figure out yet why the new driver versions don't work at the moment, since I'm sure the driver I had earlier was 362.00 or never.
Edit: Actually, for whatever reason earlier drivers launched Houdini, but when checking OpenGL Renderer Houdini is using Intel integrated graphics.