@@ -49,13 +49,12 @@ {
 	Client *old = sel;
 	XEvent ev;
 
-	XFlush(dpy);
 	sel = c;
 	if(old && old != c)
 		drawtitle(old);
 	drawtitle(c);
 	XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
-	XFlush(dpy);
+	XSync(dpy, False);
 	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 }
 
@@ -303,7 +302,7 @@ e.border_width = c->border;
 	e.above = None;
 	e.override_redirect = False;
 	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
-	XFlush(dpy);
+	XSync(dpy, False);
 }
 
 void
@@ -393,7 +392,7 @@ sel = sel->revert ? sel->revert : clients;
 
 	free(c);
 
-	XFlush(dpy);
+	XSync(dpy, False);
 	XSetErrorHandler(xerror);
 	XUngrabServer(dpy);
 	arrange(NULL);

@@ -131,7 +131,7 @@ dc.x = bx + bw - dc.w;
 	drawtext(stext, !istile, False);
 
 	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
-	XFlush(dpy);
+	XSync(dpy, False);
 }
 
 void
@@ -163,9 +163,8 @@ }
 	dc.x += dc.w;
 	dc.w = textw(c->name);
 	drawtext(c->name, !istile, True);
-	XCopyArea(dpy, dc.drawable, c->title, dc.gc,
-			0, 0, c->tw, c->th, 0, 0);
-	XFlush(dpy);
+	XCopyArea(dpy, dc.drawable, c->title, dc.gc, 0, 0, c->tw, c->th, 0, 0);
+	XSync(dpy, False);
 }
 
 unsigned long

@@ -7,14 +7,60 @@ .RB [ \-v ]
 .SH DESCRIPTION
 .SS Overview
 .B dwm
-is a dynamic window manager for X11.
+is a dynamic window manager for X11. It consists of a small status bar at the
+top of the screen and arranges windows in either a tiled or floating mode.
+.P
+If 
+.B dwm
+is in tiled mode, it consists of two columns. The left master column
+contains only one window per time, the right column contains all other windows 
+in a stack. In tiled mode
+.B dwm
+.B don't
+handles incremental resizals, some terminal programs like
+.B xterm
+may not work correctly with this in tiled mode.
+.P
+If
+.B dwm
+is in floating mode, it arranges all windows with the reqyested geometry and
+allows the user to move or resize them. Some windows, like
+dialog windows, are treated floating even if
+.B dwm
+is in tiled mode. In floating mode
+.B dwm
+handles incremental resizals.
+.P
+Windows are grouped by tags. You can view all windows with a specific tag per
+time.  However, each window is allowed to contain more than one tag, which
+allows to make windows visible in all views.
+.P
+.B dwm
+reads from
+.I stdin
+to display status text, if written.
+.P
+.B dwm
+draws 1-pixel borders around windows to indicate the focus state and save as
+much screen real estate as possible. Unfocused windows contain a small bar
+in front of the window indicating the tags and the window title.
 .SS Options
 .TP
 .B \-v
-prints version information to stdout, then exits.
-.SS Status text
+prints version information to
+.I stdout
+, then exits.
+.SS Customization
+.B dwm
+is customized through editing its source code. It is assumed that
+dwm users are high experienced users who know how a window manager works
+and who are able to patch
+.B dwm
+for their needs. This keeps
 .B dwm
-reads from stdin to display status text if provided.
+fast, secure and simple, because it does not process any input data, except
+window properties and the status text read from
+.I stdin .
 .SS Default Key Bindings
 .TP 16
 .I Key	
@@ -96,3 +142,7 @@ .B Mod1-Button3
 Resizes current
 .B window
 while dragging
+.SH BUGS
+Some terminal programs do not behave correctly in tiled mode, because
+incremental resizals are ignored to use maximum screen real estate. You can
+patch the code to fix this.

@@ -73,7 +73,7 @@ case Expose:
 			handler[Expose](&ev);
 			break;
 		case MotionNotify:
-			XFlush(dpy);
+			XSync(dpy, False);
 			c->x = ocx + (ev.xmotion.x - x1);
 			c->y = ocy + (ev.xmotion.y - y1);
 			resize(c, False);
@@ -105,7 +105,7 @@ case Expose:
 			handler[Expose](&ev);
 			break;
 		case MotionNotify:
-			XFlush(dpy);
+			XSync(dpy, False);
 			c->w = abs(ocx - ev.xmotion.x);
 			c->h = abs(ocy - ev.xmotion.y);
 			c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
@@ -191,7 +191,7 @@ wc.stack_mode = Above;
 	ev->value_mask &= ~CWStackMode;
 	ev->value_mask |= CWBorderWidth;
 	XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
-	XFlush(dpy);
+	XSync(dpy, False);
 }
 
 static void

@@ -131,7 +131,7 @@ e.xclient.format = 32;
 	e.xclient.data.l[0] = value;
 	e.xclient.data.l[1] = CurrentTime;
 	XSendEvent(dpy, w, False, NoEventMask, &e);
-	XFlush(dpy);
+	XSync(dpy, False);
 }
 
 void