The right half of the monitor screen is blacked out by vertical stripes of various colors. The software icons underneath work, if you can get at them by using the tool bar.
Replace the screen or if it is a laptop the invertor.......... No full specifications = lack of concise help !
Googling is quicker than waiting for an answer....
Thanks. The problem is that it is an iMac 4,1 desktop-- the monitor and computer are one piece. I take it you are suggesting that I get a new monitor unit and connect it to the iMac through a USB or some such arrangement? John Kolesar