Catch "There was an attempt to perform an action at a point, which is beyond the screen" error

I am testing a web page and I have to click on a dialog (panel) to confirm an action. In the Jscript script, I wait until the dialog is visible (I use the waitProperty method). The first time that the dialog appears, the action is done correctly. The second time, although the panel is not visible, the waitProperty method returns true. So, when i try to click in a button of the panel I get the error "There was an attempt to perform an action at a point, which is beyond the screen". Maybe this behavior is an error of the web but I surround the click operation with a try/catch sentence and i cannot caught the exception to continue with the test.