Owners Manual
Page 26
... OSD Lock to display one horizontal line is turned off? Does image sticking occur even when the monitor is called vertical frequency, or refresh rate, and is turned on the monitor leave shadow trails. yy LED can be flickering. yyThis occurs when signals transferred from the PC (...graphics card) are out of the horizontal or vertical frequency range of times the screen is refreshed per second. you select the appropriate resolution? Settings > General > Power LED > On yyTest the Power Plug using a lamp or other device...
... OSD Lock to display one horizontal line is turned off? Does image sticking occur even when the monitor is called vertical frequency, or refresh rate, and is turned on the monitor leave shadow trails. yy LED can be flickering. yyThis occurs when signals transferred from the PC (...graphics card) are out of the horizontal or vertical frequency range of times the screen is refreshed per second. you select the appropriate resolution? Settings > General > Power LED > On yyTest the Power Plug using a lamp or other device...