What i mean is, i might have a program open for example and then all of a sudden the interface becomes un responsive, and then it "un freezes", its the same for every window i open in XP and the XP interface. The only way to get the start button to work is to press the windows key when it happens. the best way to describe it is if you think of all my windows which are open as pictures on the screen rather than usuable GUIs. The freezing is completely random and its only been like this for a week or so. Any ideas as to what it could be? Me thinks its either XP messing up or it could be a memory type problem. thanks for any help