I'm trying to install the Zen for Desktops 6.5 evaluation. When I try to
install the server components or snapins, I get as far as the file copying
starting then the following error occurs:

Installer User Interface Mode Not Supported
Unable to load and to prepare the installer in GUI mode.

Clicking OK hangs the install.

My test environment is a NW6.5 SP2 server and a WinXP Pro SP1 workstation.
I've tried installing Sun Java on the workstation, but this didn't help.

Any ideas anyone???