There is a message "OSD Lock" on a blue patch in the center of the screen of my computer. It is flashing it continuously since yesterday. When I google searched, I came to know that I should press the start menu button when my computer is off to get rid of this message. But, there is no menu button on my desktop since I purchased it. There is a hole in its place. The other buttons are also out of order. I don't know the use of all those buttons ever. So, how to get rid of this flashing message which affects my vision? Can anybody help?
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Thanks for your help. My monitor is probably a TV monitor ViewSonic E70fb. The menu button must be broken since purchase. A horizontal gap is there on the monitor before other screen buttons which also do not work. So I am unable to fix it.