The new viewsonic E70 monitor changes its colour when i rotate its direction. No speakers or magnets are kept near the monitor (Also it is not the colour missing fact due to faulty/loose data cable or broken VGA pin as you may guess). I have noticed this colour changing effects in some old monitors also. (On changing the monitor position or direction, the colour changes). What may be the reason ? Is there any chance of permanent colour change in near future ?