I have an LG Flatron W2252TQ monitor which has developed 2 different display characteristics from left and right of the display.
If I view a digital image on screen then the left-hand side is good, whereas the right-hand side is duller and slightly out of focus. By moving the image across the screen I can prove the problem is in display and that the photo itself is not at fault. Is it likely that this could be adjusted by a technician or is replacement monitor more likely?
I don't know this monitor or if it is something that can be adjusted, but if you contact LG I have found their customer service to be excellent. Depending on the age of the monitor, you may find that they offer a swap (all be it for a re-furbished model), which is what they did for me when mine developed a fault.