Re-downloaded and tried again. No success. Here is the log file.(The forum won't allow me to upload so I apologise for dumping the contents) 2009.06.03 13:35:55.450 EST INFO: *** SYSTEM START *** -- SystemUtilities.logSystemInfo() 2009.06.03 13:35:55.465 EST CONFIG: Protege 3.4 Build 526, JVM 1.6.0_...

All sample files are in the same directory - with no other files present. There is no message of any kind at all. When I use the File:Open menu item the dialog closes, the program 'thinks' for several seconds, but when response returns no project is open. Using the startup dialog to open the project...

The project won't load for me. Although I can happily load the example projects and my own projects. Any ideas?

An excellent suggestion and a much needed learning mechanism. We all realize that the best way to explain something is with an example - especially when the meta-model is so extensive. I think a business example would be best. But, the domain is less important than the breadth of the example. Financ...