Am getting kernel panics and so ran the Apple Hardware test and got the following. 4MEM/6/40000000:0xba354118 Looks to be a RAM issue although the app that Other World Computing support told me to run did not find a error (remember). I called them and they are shipping out new RAM. Perhaps reseating the RAM may resolve this but I do not know and since its a MacBook this is a pain. I will await the new RAM.