Subject: How to solve the problem of "A required resource was unavailable ?
If the user switchs many times between Modeling and Annotation or other CoCreate applicaitions (for example 40 - 50 times) then there is a possibility, that CoCreate Modeling becomes unstable.
This problems occurs on Windows XP with Service Pack 2. Windows in CoCreate Modeling are drawn only partially; icons are not redrawn properly; a message appears stating that "a required resource was not available".
This is problem of the operating system connected with memory leaks for
Graphics Device Interface (GDI) objects when you create and destroy child
windows. To see the memory leaks, view the GDI objects of the process in Task
For solving you may download the hotfix directly from the following link