I installed Xubuntu 9.04(Alternate Install) for PPC on my iMac G3 333 w/ 288mb RAM. After the Xubuntu splash screen, the screen goes blank and goes into a suspend mode, but the computer is still running? By hitting Ctrl-Alt-F1, I can login and bring up a terminal. How can I change my video settings to start up the GUI? I'm pretty sure I have to revert my video settings to get the GUI to load. Help!!!