diff -r 644d0835a358 src/widget.cpp
--- a/src/widget.cpp	Sat Mar 07 19:40:36 2009 +0100
+++ b/src/widget.cpp	Sun Mar 15 09:51:54 2009 +0100
@@ -1280,6 +1280,9 @@
 	this->SetResize(0, 0);
 
 	switch (tp) {
+		case WWT_EMPTY:
+			break;
+
 		case WWT_PUSHBTN:
 			this->SetFill(false, false);
 			break;
@@ -1395,35 +1398,41 @@
  */
 bool CompareWidgetArrays(const Widget *orig, const Widget *gen, bool report)
 {
+#define CHECK(var, prn) \
+	if (ow->var != gw->var) { \
+		same = false; \
+		if (report) DEBUG(misc, 1, "index %d, \"" #var "\" field: original " prn ", generated " prn, idx, ow->var, gw->var); \
+	}
+#define CHECK_COORD(var) \
+	if (ow->var != gw->var) { \
+		same = false; \
+		if (report) DEBUG(misc, 1, "index %d, \"" #var "\" field: original %d, generated %d, (difference %d)", idx, ow->var, gw->var, ow->var - gw->var); \
+	}
+
 	int idx = 0;
 	bool same = true;
-
 	for(;;) {
 		const Widget *ow = orig + idx;
 		const Widget *gw = gen + idx;
 
-#define CHECK(var, prn) \
-	if (ow->var != gw->var) { \
-		same = false; \
-		if (report) DEBUG(misc, 1, "index %d, \"" #var "\" field: orig " prn ", gen " prn "\n", idx, ow->var, gw->var); \
-	}
 		CHECK(type, "%d")
 		CHECK(display_flags, "0x%x")
 		CHECK(colour, "%d")
-		CHECK(left, "%d")
-		CHECK(right, "%d")
-		CHECK(top, "%d")
-		CHECK(bottom, "%d")
+		CHECK_COORD(left)
+		CHECK_COORD(right)
+		CHECK_COORD(top)
+		CHECK_COORD(bottom)
 		CHECK(data, "%u")
 		CHECK(tooltips, "%u")
-#undef CHECK
 
 		if (ow->type == WWT_LAST || gw->type == WWT_LAST) break;
-
 		idx++;
 	}
 
 	return same;
+
+#undef CHECK
+#undef CHECK_COORD
 }
 
 /* == Conversion code from NWidgetPart array to NWidgetBase* tree == */
diff -r 644d0835a358 src/window.cpp
--- a/src/window.cpp	Sat Mar 07 19:40:36 2009 +0100
+++ b/src/window.cpp	Sun Mar 15 09:51:54 2009 +0100
@@ -81,24 +81,24 @@
 		NWidgetContainer *nwid = MakeNWidgets(this->nwid_parts, this->nwid_length);
 		this->new_widgets = InitializeNWidgets(nwid, RTL);
 		delete nwid;
-	}
 
-	if (!RTL && this->widgets != NULL && this->new_widgets != NULL) {
-		/* There are two descriptions, compare them.
-		 * Comparing only makes sense when using a left-to-right language.
-		 */
-		bool ok = CompareWidgetArrays(this->widgets, this->new_widgets, false);
-		if (ok) {
-			DEBUG(misc, 1, "Nested widgets are equal");
-		} else {
-			DEBUG(misc, 0, "Nested widgets give different results");
-			CompareWidgetArrays(this->widgets, this->new_widgets, true);
+		if (!RTL && this->widgets != NULL) {
+			/* There are two descriptions, compare them.
+			 * Comparing only makes sense when using a left-to-right language.
+			 */
+			bool ok = CompareWidgetArrays(this->widgets, this->new_widgets, false);
+			if (ok) {
+				DEBUG(misc, 1, "Nested widgets are equal");
+			} else {
+				DEBUG(misc, 0, "Nested widgets give different results");
+				CompareWidgetArrays(this->widgets, this->new_widgets, true);
+			}
 		}
 	}
 
-	const Widget *widgets = (this->widgets != NULL) ? this->widgets : this->new_widgets;
-	assert(widgets != NULL);
-	return widgets;
+	const Widget *wids = (this->widgets != NULL) ? this->widgets : this->new_widgets;
+	assert(wids != NULL);
+	return wids;
 }
 
 WindowDesc::~WindowDesc()