For some reason, I've noticed it's a bit slower than my MBP in opening and saving documents from iwork and office 2008. I made a keynote presentation that came out to 25MB and I tried to export it as a powerpoint file to email to my classmates. It took a long time and a couple times, it had the colorful swirl circling for the longest time. I left my computer for a while and finally it was done. With my MBP, this procedure is done within seconds or at most, a minute. Anyone having this issue? If its an issue, should i fresh reinstall my OS and reinstall the latest backup? The backup i'm using now when i first got this mac mini is from my MBP.