Hi. While I was booting up WordMaster GS on my IIGS, my screen turned a vivid greenish-yellow color (the same color as the slanted slot on the monitor which indicates that power is on) with no border. I tried another monitor on my IIGS and it worked fine. I used my monitor on another machine, and it remains greenish-yellow. Is there anything I can do to correct this problem? Thank you in advance.