Bug on OSX with Nvidia Web Driver

The launcher displays funny when using the Nvidia Web Driver. I’m using a 750M GPU and it feels like the driver has improved (quite a lot) performance in games but the launcher displays funny and the engine often crashes and I must restart it. I’m not sure the latter bit is driver related. But the funny launcher display is definitely driver related. I can switch back to OSX Default Driver and all’s good.

Same here with GTX 980 ti on El Capitan