Hello. I did Xbench on my unibody 2.0Ghz MB and put side-by-side comparison with another's guy's benchmark. Most scored similar. However, HDD benchmark is drastically different especially 'read' benchmarks. Mine is too slow. http://db.xbench.com/merge.xhtml?doc1=342894&doc2=312978 Can I get my HDD replaced by this? What should I do? Thanks in advance.