"Pulsating" brightness while watching a DVD
My brother just got a cable today to connect my dad's PowerBook G4 to our TV. Since we have an old TV, we have to go through the VCR and use a headphone to RCA cable to get audio through the TV. It's working almost perfectly, but for some reason the brightness pulses at fairly regular intervals (every three or four seconds). It goes between way too dim and a bit too bright. Any way to fix this?