Double image on Zowie 240Hz

Hi im having a double image problem on my zowie monitor, ive tried changing the cables and its not from the gpu other monitors work fine even w the same cables used on the zowie, cant send it to warranty cause it was from a freind and its already past it as well, the only videos i can find of fixes are from people cutting out the connections on the monitors pcb, would like to know if anyone has had thsis problem before if they had found a solution that doesnt require blocking the conections on the pcb.