Hello I have a 15 inch macbook pro early 2008 model(the model before the ones released in october). At that time it was the one with highest specifications, 2gb ram, 2,5ghz dual core t9300, geforce 8600m gt 512 mb etc. It has been working very smoothly in the past years and I could easily run vmware fusion with windows bootcamp partiotion running in the background. But lately it has been very slow and running vmware fusion was near useless. So I formatted the laptop for the first time , installed vmware fusion and ran it again, but there is no difference. It is still so slow. So my question is, what causes the slowness for a software that was working perfectly fine before? Is it because my laptop is 4 years old and some components might have been damaged(ie.heat)? Or has vmware fusion system requirements changed? or is it because I am running lion? And if its a hardware issue, what would be worth upgrading? Personally I was quite disappointed with the formatting, because I thought it would make the laptop much faster (like when you format a windows pc), but it remained the same.