Greetings: Re: Windows 7 Pro. My computer has been acting up; script, Win exp. stops working, Yahoo not responding et al. i.e. When I access Yahoo (home page) and theire might be articles with mulitple of pictures or sub-articles, navigating from one pic or article to another takes a long time. Scrolling doesn't react timely to the mouse and in general can be herky jerky or not move at all for a while. While all of this is going on, my CPU fans revs up very high and then goes up & down. I have taken a screen shot via Speed Fan, please analyze.