[vtkusers] trouble running vtk examples on intel Macs

[Feng Ding]

Dear all,
Just got my apple macbook pro with OS X version 10.4.8, and decided to
install VTK 5.0.2 on it. The compilation is OK. But when I tried to
run VTK examples (Cone5, Cone6...), the program cannot exit normally,
i.e., when I clicked on the close button, the program window
disappeared, but the command line didn't return. I have to use
'Ctrl-C' to end the program. Anyone has met the same problem? Thanks!