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Message: <blockquote data-quote="funkyflex" data-source="post: 1652237" data-attributes="member: 348801">Hello there.I just got my old G4 back to work and updated it to 10.5.8, since this seems to be the latest os x still working with non-intel mac´s. I own an apple cinema display with the old ADC-connection. Now, when i boot the mac, the white apple logo is showing up on startup, but after that, the screen remains black and the brightness touchbutton does not seem to do anything anymore. The Graphic-card is a Rage128Pro with vga and adc ports. The vga port is working just fine if i use an Asus somethingsomething monitor with it. I already tried to change the brightness with F1+F2 keys with no result. Does anyone have an idea? would be great.Thanks</blockquote>