>But I think it could be of interest to the VM community in general to >list (some of) the incompabilities. The point is, it's not as much a problem of revealing confidential information as of remembering what the heck it is that I had to change and where. The SFBLOK business was definitely not a problem, nor was the extra line in CP Q V ur. But the extra digit in the device number did break one of the modules, for example. Eric