Hi guys, I found an abandoned old fat PS2 on the street the other day (for real!) I've tested it a little bit, and found that horrible red screen ("please insert a playstation or playstation 2 format disc"). So I read here a few threads and I bought a new laser lens from ebay, installed it, and since, I managed to run one original PS2 game a couple of times (Tekken 4). The problem is, sometimes it would still show the red screen and won't read the same disc. I have no idea if it was modchiped before, but it can't run backup games anyway. Does anyone have an idea of what can be the problem now? Thanks!!