diff -ur dmenu-3.2-orig/config.mk dmenu-3.2/config.mk
--- dmenu-3.2-orig/config.mk	2007-05-30 04:21:59.000000000 -0600
+++ dmenu-3.2/config.mk	2007-07-07 20:02:08.000000000 -0600
@@ -12,7 +12,7 @@
 
 # includes and libs
 INCS = -I. -I/usr/include -I${X11INC}
-LIBS = -L/usr/lib -lc -L${X11LIB} -lX11
+LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lXinerama
 
 # flags
 CFLAGS = -Os ${INCS} -DVERSION=\"${VERSION}\"
diff -ur dmenu-3.2-orig/dmenu.1 dmenu-3.2/dmenu.1
--- dmenu-3.2-orig/dmenu.1	2007-05-30 04:21:59.000000000 -0600
+++ dmenu-3.2/dmenu.1	2007-07-07 20:02:08.000000000 -0600
@@ -10,6 +10,7 @@
 .RB [ \-p " <prompt>"]
 .RB [ \-sb " <color>"]
 .RB [ \-sf " <color>"]
+.RB [ \-xs " <screen">]
 .RB [ \-v ]
 .SH DESCRIPTION
 .SS Overview
@@ -40,6 +41,9 @@
 .B \-sf <color>
 defines the selected foreground color (#RGB, #RRGGBB, and color names are supported).
 .TP
+.B \-xs <screen>
+starts dmenu on the given Xinerama screen (1-indexed)
+.TP
 .B \-v
 prints version information to standard output, then exits.
 .SH USAGE
diff -ur dmenu-3.2-orig/main.c dmenu-3.2/main.c
--- dmenu-3.2-orig/main.c	2007-05-30 04:21:59.000000000 -0600
+++ dmenu-3.2/main.c	2007-07-07 20:04:01.000000000 -0600
@@ -8,6 +8,7 @@
 #include <unistd.h>
 #include <X11/Xutil.h>
 #include <X11/keysym.h>
+#include <X11/extensions/Xinerama.h>
 
 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
 
@@ -412,6 +413,27 @@
 		"             [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
 }
 
+static void
+queryscreeninfo(Display *dpy, XRectangle *rect, int screen) {
+	XineramaScreenInfo *xsi = NULL;
+	int nscreens = 1;
+
+	if(XineramaIsActive(dpy))
+		xsi = XineramaQueryScreens(dpy, &nscreens);
+
+	if(xsi == NULL || screen > nscreens || screen < 0) {
+		rect->x = 0;
+		rect->y = 0;
+		rect->width  = DisplayWidth( dpy, DefaultScreen(dpy));
+		rect->height = DisplayHeight(dpy, DefaultScreen(dpy));
+	} else {
+		rect->x      = xsi[screen-1].x_org;
+		rect->y      = xsi[screen-1].y_org;
+		rect->width  = xsi[screen-1].width;
+		rect->height = xsi[screen-1].height;
+	}
+}
+
 /* extern */
 
 int screen;
@@ -428,8 +450,10 @@
 	char *selbg = SELBGCOLOR;
 	char *selfg = SELFGCOLOR;
 	int i, j;
+	int xinescreen = 1;
 	Item *itm;
 	XEvent ev;
+	XRectangle screeninfo;
 	XModifierKeymap *modmap;
 	XSetWindowAttributes wa;
 
@@ -456,6 +480,9 @@
 		else if(!strcmp(argv[i], "-sf")) {
 			if(++i < argc) selfg = argv[i];
 		}
+		else if(!strcmp(argv[i], "-xs")) {
+			if(++i < argc) xinescreen = atoi(argv[i]);
+		}
 		else if(!strcmp(argv[i], "-v"))
 			eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk\n");
 		else
@@ -466,6 +493,9 @@
 		eprint("dmenu: cannot open display\n");
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
+
+	queryscreeninfo(dpy, &screeninfo, xinescreen);
+
 	if(isatty(STDIN_FILENO)) {
 		maxname = readstdin();
 		running = grabkeyboard();
@@ -494,10 +524,10 @@
 	wa.override_redirect = 1;
 	wa.background_pixmap = ParentRelative;
 	wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
-	mw = DisplayWidth(dpy, screen);
+	mw = screeninfo.width;
 	mh = dc.font.height + 2;
-	win = XCreateWindow(dpy, root, 0,
-			bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0,
+	win = XCreateWindow(dpy, root, screeninfo.x,
+			screeninfo.y + (bottom ? screeninfo.height - mh : 0), mw, mh, 0,
 			DefaultDepth(dpy, screen), CopyFromParent,
 			DefaultVisual(dpy, screen),
 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);