Hi all Since this week I have some issues with my 5,5 year old Macbook Pro. I was working on my Macbook when suddenly it became unresponsive, I couldn't do anything anymore besides holding down the power button. The fans did not speed up. I restarted and when the login screen appeared I moved to my account but my mouse froze before I could get there. Again I restarted and I could get past the login screen but I didn't get a dock and once more my mouse was unresponsive. I decided to reinstall a time machine back up and this did resolve the issue for one boot up. After the second boot, I couldn't get past the login screen. I did another time machine back up (from the same date though) and for now everything is going like it should, I restarted a couple of times and it seems to hold. But what could be wrong? Is the hard disk failing or the RAM? Although it would surprise me, because I also have Windows XP installed and during these issues this kept running fine. Maybe noteworthy: it got a new logic board after 1,5 year because of the Geforce 8600M GT issue. Thanks!