I am not sure I have anything to worry about but I do not like it. I notice when my screen saver comes up my fish stop about every 5 seconds or so for a very slight moment in time. The screen saver just pauses for a split second. I notice it on all my screen savers. The other pause or hiccup I notice is at boot up when the windows tune starts to play its opening sequence it is jumpy as though it was skipping. could this be my processor in my new (refurbished Pavilion 7955)? It is a 1.5 p4. also I notice my drive light comes on about every 5 seconds or so as well.