My Mac Pro (2008) displays the spinning circle of death after 8 hours or so? I am unable to isolate the problem.
My 2008 Mac Pro displays the spinning Wheel of Death after running for 8 hours or so. The curser moves but nothing else works. The spinning wheel does not change after it starts spinning. Ive taken it to the Mac Super Store where I purchsed it used and they have not been able to diagnoise the problem.
Mac Pro (Early 2008), OS X Mountain Lion (10.8.4), I have replaced the RAM with 16 gig
