Hello, I have developed a product with ZClasses called Newster. The newsclass contains a subclass called message that contains the messages. Everything works really swell (you can see the frontpage at www.openauth.co.uk <http://www.openauth.co.uk/> ) but I have the following problems: 1. I tried to create a Boolean property in the message class basic property sheet to tick to expire messages. However, when I create a propert_sheet_interface, the template code is generated fine except that for some reason the Boolean property doesn't work properly. I cannot unselect it once it is selected and no matter how much I scratch around in the code, I cannot resolve this issue. In the end I replaced the Boolean property with a string object and just set it from 0 to 1 when I want to expire messaged. Is this a known issue and is there a Boolean based workaround? 2. Also, how do I give my Zope product an icon in the free view? I guess I have to set this somewhere in the Zclass, but how? All help appreciated, Thanks, Pieter