For a while I wasn't using my macbook pro. I started using it again in november and noticed that it crashes a lot now which it never did before. I figured it was a HD issue because there was errors on the hard drive with files when I started backing everything up, ie movies, music and photos. I replaced the HD with a Samsung 840 SSd and upgraded the ram to 8gb Before the upgrade I noticed it happened every time I put the lid down and then opened on another occasion. but now even after the upgrade I'll use it randomly and it will crash. Ive tried re-installing mountain lion but still crashes. I did a fresh install on SSD of Snow leopard and upgraded to mountain lion from there Any suggestions?