I have an ibook g4 and it can not play HD movies. I recently purchased an adapter to have my mac play on my 42" hd tv but it is kind of pointless when my mac can't even play hd movies Right now i am running mac os x VERSION 10.4.11 Processor- 1.2 GHz PowerPC G4 Memory 768 MB DDR SDRAM Obviously that is not enough to run hd movies perfectly. Is there any type of software i can download or do i have to get more RAM or what? Please help me as to what i should do, and post links to where i can do so. thanks!!