I can get the Apprentice edition installed just fine, no errors there. Everything comes up correctly and runs smoothly except for the confirmation windows when saving or exiting or things of that nature. They don't display at all. I hear the warning beep, then I see nothing. The window button does show up on my taskbar, but I don't see the window at all. I can minimise the window using the button on the taskbar and I can see the outline as it minimises, but that's the only time it's visible. The only way I can exit Houdini because of this is to bring up xkill and do it that way.
I'm running Redhat 8.0 with Gnome on an AMD k6-2 500 w/ 192MB SDRAM, PNY GeForce 4 MX420, with the most recent nvidia drivers. If you need any more info I'll be more than happy to provide it. Thanks for any help you can throw my way.