Replying to Final cut pro

i bought a new macbook pro 2 months ago and have tired installing FCP 4, twice from two differnt sources and both times when i open it, it says, Configuration error. this software requires certain hardware or software which is missing. AGP graphics card.
What is this agp graphics card? i just bought this computer and it has a really nice graphics card already in it.
final cut express works fine.

PS anyone know where i can get a newer version of FCP like 5 maybe? i cant find it on isohunt