Hi yggdrasil You are of course correct, as I readily admitted, I DON'T know an awfull lot (Technicaly speaking) about computers but I DO know one thing for an absolute certainty...There IS such thing as 'Software Conflict'!!! and also i'm pretty sure that there ARE advantages to keeping computer's 'Pure' I have proven that to myself and other's over and over.'Not wanting to be argumentative OR to contradict you, who quite obviously know a lot more than me about the subject, but I believe that if lookoo is having THAT much of a problem and the normal maintenence regime isn't working then it would be well worth his time trying what I suggest BEFORE he trashes his hard drive or throw's his PC through the window!