--- a/config.def.h	Sun Apr 27 18:36:11 2008 +0100
+++ b/config.def.h	Tue May 06 15:13:36 2008 +0100
@@ -22,10 +22,12 @@
 /*   func name  bx  by  bw  wx  wy  ww     wh  mx  my       mw  mh     tx  ty     tw  th  mox moy mow moh */
 #define MFACT			0.55	/* master width factor [0.1 .. 0.9] */
 DEFGEOM(single,  0,  0, sw,  0, bh, sw, sh-bh, wx, wy, mfact*ww, wh, mx+mw, wy, ww-mw, wh,  wx, wy, ww, wh)
+DEFGEOM(dual,    0,  0,1280, 0, bh, ww, wh-bh, wx, wy, 1280,800-bh,  1280,  0, ww-mw, sh,  mx, my, mw, mh)
 
 Geom geoms[] = {
 	/* symbol	function */
 	{ "[]",		single },	/* first entry is default */
+	{ "[][]",	dual },
 };
 
 /* layout(s) */

--- a/dwm.c	Sun Apr 27 18:36:11 2008 +0100
+++ b/dwm.c	Tue May 06 15:13:36 2008 +0100
@@ -1851,6 +1851,7 @@
 	|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
 	|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
 	|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
+	|| (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
 	|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
 	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
 		return 0;