problem installing fc4 ppc on imac 233 32mb ati rage pro

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hey guys i realy wanna use fc4 on this mac but when i try to boot to the install cd it comes up with a error if you guys know what im talking about then please post otherwise ill get more details in a little bit :)

[SPHERE]

hey guys i realy wanna use fc4 on this mac but when i try to boot to the install cd it comes up with a error if you guys know what im talking about then please post otherwise ill get more details in a little bit :) ok dudes i figured it out it was the amount of ram i had i upgraded it by trading my friend for some :) thx anyways dudes :)