AlecM7
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Ahh, sorry I meant that YPbPr worked just fine before installing. I haven't tried it after installation. I also added a switch so I can change between composite and VGA modes.If YPbPr still works then you made some mistakes installing the pack, VGA replaces YPbPr. Try installing it again following all the steps carefully.
I know you said "you have to have selected 480p at least once in the system menu" even if it gets changed back to 480i will it still work?