I have a spaceball running on V5 with windows 2000 and AIX Unix, i just downloaded the new drivers from the website and it worked i have a 6094-051 Spaceball is that the same as a Classic?
Use the EDIT LINKS pulldown and go to pointed documents and select load, this will load the CATPart in a new window, any changes you make to the CATPart in the window will also happen in the ASSEMBLY window, this is how you can design in context and have a clear view of a component.