Zopists, I have been checking this out and it seems to be a bug. I checked the collector and didn't see this. I have instances of a ZClass. I change the meta_type of the ZClass. Should not the meta_type of those instances also change? They don't. Icons are the same way. If I have and instance, then changes the icon for the ZClass, the instance icon remains the same. It's not a cache issue. I have restarted and flushed the browser. It seems that things on under the Basic tab don't affect already created instences. This isn't how ZClasses is designed, right? Also, the bug http://www.zope.org/Collector/392/view , says completed, but even with a CVS from 7/20, the meta_types still won't change in any add selection lists. Anyone think I shouldn't submit this? Warmest Zope wishes, Jason Spisak webmaster@mtear.com