I have created a sliding zone that contains a listbox of property addresses. The user clicks on one of the properties and a postback occurs that populates the page with the property data. When the page loads, the sliding zone is still extended out and the only way to get it to retract is to move the mouse over the sliding pane's control. I've tried to force a retraction by setting the dockedpaneid on page load but that has no effect. Any ideas on how I can do this?