Hi, not likely, but which exact Mac is this?

If you don't know the model, find the Serial# & use it on one of these sites, but don't post the Serial# here...

http://www.chipmunk.nl/klantenservice/applemodel.html

http://www.appleserialnumberinfo.com/Desktop/index.php

How to find the serial number of your Apple hardware product...

http://support.apple.com/kb/HT1349

So, is it solved???

If so what was the solution?

Tough to tell what it is exactly, but...

Open console in Applications>Utilities, check the system log for the date/time of the last problem  & the Startup right after that for clues.

Click on the top line we want, Shift plus click on the bottom line we want, CMD+c to copy, then paste the text in a reply with CMD+v

A few dozen lines should be about right, hundreds or thousands won't likely be readable.