I think my 9400M is starting to fail. Basically my expose is becoming ultra choppy and laggy and so are some other animations. Expose has always been a tiny bit choppy since the beginning but thats the OS, but now they're ridiculously delayed and laggy. At first I thought it was my HDD failing but I've ran loads of maintenance checks and everything says its fine. Also it doesn't sound odd and the reading times are fine. Its just the animations that are stuttering. I switched to my 9600M GT and have been using it for around 15 minutes and the issues appears to have gone. Just want to know if anyone else has experienced this or if there is anything I can do other then sending it in for repair? Maybe its a software glitch related to my GFX Card? Any recommendations would be appreciated.