v7 ps2 with messiah 1.3, it boots some games but some games the ps2 logo screen appears and it freezes. The screen stays black, I know its not a bad burn becuase it does this with known good backups. I am assuming this is a laser issue and not an install issue. Am I right on this assumption? If so would an Azimuth adjustment be suffucent to fix this problem, or should I go straight to the potentiometer adjustment ? Any tips or tricks on how to get this ps2 working correctly would be greatly appriciated.