Always check if the graph is too small to draw it

src/process-monitor.c

@@ -223,10 +223,10 @@ xtm_process_monitor_paint (XtmProcessMonitor *monitor, cairo_t *cr)
 #else
 	width = GTK_WIDGET (monitor)->allocation.width;
 	height = GTK_WIDGET (monitor)->allocation.height;
+#endif
 	/* Don't draw anything if the graph is too small */
 	if (height < 3)
 		return;
-#endif
 
 	/* Paint the graph's background box */
 	cairo_rectangle (cr, 0.0, 0.0, width, height);