These messages about unable to register have to do with the graphics package. As long as you are able to graph okay, no problem.
I also have the problems fixed with the MARK 5.0 version concerning the design matrix. The problem was resolved when the Windows desktop icon has the installation subdirectory listed in the "Start in:" box for the Shortcut tab in the Properties box. This same fix is neededin the Start | All Programs menu approach to starting the program. The design matrix problem came down to the Mark_Int.exe file not locating a DLL correctly with the new version of the Visual Objects compiler. When the Mark_Int.exe file is executed starting in its subdirectory, everything works.
If you install the latest version, the setup should correctly set all of this up. If the MARK icon is not the red check mark across phi, then there may be a problem.
When you say
installation subdirectory, I assume you're referring to (default):
C:\Program Files\MARK ? If so, when I just installed the new version that Evan sent the link to (beta2), the desktop icon DOES list that directory in the Shortcut Tab for the 'Start in:' field.
However, the Start Menu icon that was created is a blank Windows .exe icon (not the checked phi) and the 'Start in:' field is blank. You can obviously change the icon by right-clicking and choosing the checked phi, and I can add the 'Start in:' field, but I'm not sure whether this indicates a lingering problem in the installation.