I have a Mac system at home. I have installed Mac OS X v10.7. Actually the problem is that lion crashes all the time now and then and I don’t know why I am getting black screen. My system holds on the black screen and nothing is happening. My system becomes totally unresponsive. The only thing that I can do at that time is that, I can force shut down. I have tried shutting down but nothing happened. I don’t know what is happening. Does anybody know how to fix this? Any suggestions would be highly appreciated. thank you in advance.
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