I just purchased my first Mac ever and am slowly learning how to do this compared to an IBM PC. I bought the following: Power Mac G5 - Dual 2 GHZ 2.5 Gig RAM 23" cinama display I purchased this on Sunday and every morning when turning it on I get a black screen until I boot it up 2-4 times? I called Mac and they hadn't heard of it and I called tghe next day and this time they told me to do the apple-option-P-R I believe. Instead of shutting it down last night I left it on and came in this moring and hit the keyboard and mouse to wake it out of sleep mode but again the screen was black and the light in the lower right corner would blink three times and then stop and then blink three times and stop again. This would go on and on so I had to reboot it again 2 times before the desktop would display. Anyone seen this? The computer was a lot of $$$ and it is disappointing when this happens so soon and so often.