MOUSE PROBLEMS

  The usual mouse is sensitive to light and electrostatic charges.
  The light problem is easily avoided. The sensitivity can be tested by directing a strong light from a desk lamp
  onto the mouse.
Check that the small black rollers inside the mouse are clean.
  The electrostatic problem is solved by making an earthed mouse mat.
  It is not clear to me just where the electrostatic charges come from and how they effect the mouse but will stop
  the pointer moving smoothly or may not move it past some positions.
  I suspect the cause may be the movement of ones shoes on a synthetic carpet below the desk, or from the ball
  inside the mouse. That the ball can hold a charge can be shown by removing it from the mouse and rubbing it
  against a dry synthetic cloth and bringing it close to small pieces of tissue paper. 
  A very good earthed mat can be made by folding a piece of aluminium foil over a piece of thin cardboard - a piece
  from the side of a wine cask is about right - and using a few staples to connect a length of thin wire to the
  the aluminium foil. The other end of the wire is connected to one of the screws at the back of the computer.
  A piece of printer paper is then folded over this laminate.
  Better earthing is achieved by brushing the back of the paper with a detergent solution and allowing it to dry.
  The paper could also be blackened with ink or water paint. A good surface is plastic paint.
  Leave about 5 mm of al. foil uncovered at the near edge of the mat to earth the user.
 

  Does the CD player make a strange noise ?
 My problem was found  to be finger marks (which contain oil) being transferred to the inner driving circle of the disc.
 It could be better  to have finger marks on  the playing area than the centre. A very thin smear of a thin solution of
 rosin in methylated spirit on the centre driving surface seems to have fixed it.

 If your printer is left unused for days at a time and the ink cartridge is easy to remove, then keep it in a small jar
 in a sealed roomy plastic bag along with a wad of tissue saturated with water .
INFORMATION ABOUT INKJETS

 If a program needs to be reinstalled, then after removing it, restart the computer before the reinstallation.

 My C drive was often running in the background and this was traced to the incorrect scheduling of the virus check
 in Norton Utilities - not Norton Anti virus

If your computer sessions are not frequently interrupted for long  periods, disable the screensaver but leave the monitor
shutdown enabled. The screensaver can disrupt some programs and cause errors.

Run defrag. often to fix small errors before they become big problems. (System Tools in Accessories)

To remove an icon from the desktop (right click icon and properties to check)
 Click icon to highlight then press Shift + Del then Shift + Enter

The cables in the tower case should be separated as much as possible and the 'concertina' folds closed
and tied to avoid 'crosstalk' and errors.