I cannot seem to enable the webdrivers, either when I tried with the beta, or now. Had no problems in El Capitan. I tried with no editing (not enabled), I edited the config file, adding the language in the OP, no change. I removed nv_disable=1 (I didn't have nvda_drv=1 because this was a clean install) and I get past the clover screen but the monitor turns off with no signal after getting the initial apple splash screen.

There must be a something I'm missing.