I have a RadWindow that is working fine ... and another RadWindow that is opened from the edit form of a RadGrid (RadControls RadGrid, not Prometheus RadGrid). The first RadWindow works great but the RadWindow in the radgrid opens only sporadically; most of the time when I click the opener element I get no javascript errors and no window ... nothing. But sometimes it does open. Is this a known issue? Is Prometheus RadWindow compatible with the RadControls RadGrid? Do I need to do something specific to make it work? Both of my RadWindows are both set up to open the window with the "OpenerElementID" property.