Well, I just got Action Replay Max not long ago, and just started using the codes today. I'm running a PS2 Slim (chipped with laser fix). I booted up AR Max, and changed to my game disc - Gran Turismo 3: A-Spec, and then proceed to select which cheats to activate, then press start to start the game. Game loads normally, enter into my save game.... wha? It hasnt given me the cheats I selected! The GT3 game disc is a backed up copy though, as I have the original at my father's house (I use backups at my mum's to save me bringing round games) I can try use the original when I get ahold of it though.. Does anyone know any known issues?