Hello! I recently upgraded my Powerbook G3 Wallstreet to OS X Jaguar (160 MB RAM). Whenever I boot up the screen is fine while displaying the OS X gray apple boot screen and then when the GUI bootscreen comes up the screen flickers with an odd pattern and the backlight will go out. I wait to listen until the hard drive stops spinning, then hit the brightness up button and the backlight will come on. What's going on and how can I fix it? Thanks!