The G4 is a 32 bit processor, meaning it can address at most 4GB of RAM. Due to the way the MacOS addresses memory (maybe someone else can explain the details--I'm not that knowledgeable) the actual limit is half that.
cool, thanks dude.
well, not so cool actually but i'm glad to know the reason at least.
if anyone can get more technical for us on why it's only 2gb, i'd appreciate it.
thanks!