Solved the problem I have a new MBP 2.53+4gb and it constantly is pausing. Even as I type this after 10 words I have to wait a few seconds for the next 5 to show up. If I'm scrolling it'll just stop scrolling and then jump half the page. I'm not using up too many resources as I'm only using firefox/aim/email. But the pausing occurs whether I'm just reading the news or using photoshop. (Also about a month ago my hard drive crashed and I returned my computer to apple where they installed a new hard drive and OS.) So my question is: Is this a common issue that has been addressed and fixable? If so please direct me. If not, is there anything I can try before taking it back to the Apple store...again? Thank you ahead of time for any help.