--- planner-0.14.4/src/planner-gantt-chart.c	2009-11-17 10:29:26.000000000 +0000

+++ planner-0.14.4/src/planner-gantt-chart.c	2009-11-17 10:29:26.000000000 +0000

@@ -1876,6 +1876,7 @@

 	gdouble                t;

 	gdouble                zoom;

 	gdouble                alloc;

+        mrptime                mt;

 	g_return_if_fail (PLANNER_IS_GANTT_CHART (chart));

@@ -1889,7 +1890,9 @@

 	alloc = GTK_WIDGET (chart)->allocation.width - PADDING * 2;

 	zoom = planner_scale_clamp_zoom (ZOOM (alloc / t));

+        mt = gantt_chart_get_center (chart);

 	gantt_chart_set_zoom (chart, zoom);

+        gantt_chart_set_center (chart, mt);

 }

 gdouble