rem: this.setRectPxBounds(pxBounds); 
add: if (pxBounds) { this.setRectPxBounds(pxBounds); } 
context:     updateRectToMap: function() {        // The base layer for overview map needs to be in the same projection        // as the base layer for the main map.  This should be made more robust.        if(this.map.units != 'degrees') {            if(this.map.getProjection() != this.ovmap.getProjection()) {                alert('The overview map only works when it is in the same projection as the main map');            }        }        var pxBounds = this.getRectBoundsFromMapBounds(this.map.getExtent());        this.setRectPxBounds(pxBounds);    },
meta: 1027	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1027/948406b5b534e857c903e75e0a9d75f05afb4cbd/OverviewMap.js/buggy/lib/OpenLayers/Control/OverviewMap.js