When I boot my PC and when the monitor turns on (for example when exiting from standby mode) the screen image is projected too low, the bottom pixels are not visible ! First, i moved the image each time i had to in order to re-center it again. Then, I noticed that several minutes later (when the monitor is "hot") the image moves up so if i re-centered it first, the top pixels are now too high and out of the monitor. and such things happen each time i turn it on So i decided to leave it and wait until the screen image is correctly centered (there aren't too much lost lines at the bottom, about 8-10 pixels). My monitor is an 19" AOC 9Glr. (not flat screen, not TFT) Do you think I should return my monitor to the shop ?