Please help. Recently my computer always seems to be one step behind - I click to do somehting and it doesn't do it till I click to try and do somehting else. Also when I close a programme down instead of disappearing instantly, it wipes it off the page going from top to bottom. At times windows do not close properly, blocking new pages with old info, so at times the whole screen is covered with bits from different windows. I would appreciate your help Diane