I just put a duo2 on the V9 gh-023 ps2, all the connections are fine( at least I think so, I have redo the job for 5 times!! ). But the problems is, it wont boot backups when the ps2 first power on. I have to switch it off, and switch on again, and push the reset botton, so it will boot games with no problems. I first think it is the problem of the laser fix to the la 6508, so I connect it back to the 12V, but the problem still there. I have redo the A, B, I , G, H, and it seems not working..... anyone can tell me whats wrong with it?