Hi. I just installed a new Hitachi E7K1000 1GB HD into my Powermac G5. I then found out my Powermac only uses drives at the 1.5GB transfer speed rate... i checked the specs for the hitachi drive at OWC and it says it is 3.0GB, not a 1.5/3.0GB hybrid. Could this cause trouble? The drive seems to be working fine so far... but does this mean this hitachi drive is not compatible with my mac??? Please help!!!