Hi All: <BR><BR>I use Form Authentication for my application (VB.NET). And I also have a popup window using Javascript Window.Open. But the problem is, once I close the Popup window, return to the origional page and do a postback (i.e. click a button on it) it shows the Login page --- I&#039;ve been loged out. <BR><BR>Has anybody had the same problem, and how to solve it? <BR><BR>Many thanks