patch from is -- I don't know what it does, but he says it's critical.

sys/arch/amiga/dev/grf_cv3d.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: grf_cv3d.c,v 1.4 1997/11/23 23:26:03 veego Exp $	*/
+/*	$NetBSD: grf_cv3d.c,v 1.5 1997/12/20 21:13:13 perry Exp $	*/
 
 /*
  * Copyright (c) 1995 Michael Teske
@@ -336,6 +336,12 @@ grfcv3dmatch(pdp, cfp, auxp)
 	if (zap->manid != 8512 || zap->prodid != 67)
 		return (0);
 
+#ifndef CV3DONZORRO2
+	if (!cv3d_zorroIII) {
+		return (0);
+	}
+#endif
+
 	cv3d_boardaddr = zap->va;
 
 #ifdef CV3DCONSOLE