I just bought the new 13 inch i5 Macbook Pro a few months ago and I noticed that when I watch HD video it skips and stutters (720p and 1080p). I've tried different players and I get the same results. It occasionally happens when watching HD flash video too. I'm thinking it's the hard drive because this computer should be fast enough to handle these video files. Any thoughts on what might be the cause? Btw I have the stock 5400 320gb drive.