hello, i have a power mac which isnt that old but just recently its started slowing down and freezing quite regulary. Im stuck trying to work out why. I dont know what half of this stuff means but heres some stats on the mac to help you. Model Identifier: MacPro 1,1 Processor Name: Dual-Core Intel Xeon Processor speed: 2.66 GHz Number of Processors: 2 Total Cores: 4 L2 cache (Per Processor): 4MB Memory: 4GB 667 MHz DDR2 FB-DIMM Bus Speed: 1.33GHz Boot ROM Version: MP11.005C.B08 SMC Version : 1.7f10 Hard Drive Avaliable: 202.94GB Hope that explains it, let me know if you need to know anything else? Thanx!!