I recently bought 2 S2340M recently both left halves of the screens are totally fine but the right half, starting at the center and gradually getting worse toward the right edge, its pixelated, with a slight red or green ghosting. There is also some image burn-in in the affected area of the screen. Image burn in occurs very quickly while on and working. In a matter of minutes.
I've ran diagnostics on both and it doesn't help. I've tried all inputs and different computers as well. I think its a defect in this monitor lineup.