My PowerBook G4 arrived the other day and I was very pleased to find it was in one piece! It was from eBay and was listed as being the high-res 15" 1.5GHz with 1GB RAM. On powering it up and checking the System Profiler it says it has a 1.67GHz proc and 2GB of RAM (this I can check). Is there any way the CPU specs could have been faked?