It comes as a zip package that contains versions for linux, linux-64, windows, and the Mac. There is no setup program. A readme file instructs to extract to a folder and for linux, to execute the program with the ucc-bin file located in folder UT2004/System. Ok, so I created a folder at /home/mark/UT2004 and extracted to it. I tried double clicking on the file ucc-bin but I got this permission error. The permission (I forget what it was) had no execution checked so I set it to 777. I also set the folders ut2004 and system to 777 and ran the menu "Applications > Run Application..." but it does nothing. There's no hard drive activity at all. What to do?