I have an iPhone 5 and went to an Apple class about it. So I understand that iCloud saves when you turn off your phone, which I have not done since downloading those photos from the phone to my computer.
My operating system on my MacBook Pro is either Snow Leopard or Mountain Lion, whichever is the newer. I upgraded about 6 months ago. It says, OS X Version 10.8.5, I have 4GM memory and 2.8GHz Intel Core 2 Duo, if that helps??
Why would it revert back to before I loaded those photos? I took a trip to France and had about 1500 photos...
Thanks so much John for your help.
And I found my photos? I don't get it???
Well, the iPhoto icon at the bottom of my toolbar, disappeared during this attempt at back-up. So I went to finder/applications and found it and clicked on it. There were two iPhoto files so I opened the bottom one and there they were? Geez.
My iPhone, by the way, says I have 3,436 photos in the settings area, so they are somewhere perhaps, but when I open my phone's camera roll, it says I have 1,382.
I did as you suggested and rebooted in Recovery HD. Hit Repair Disk and a number of items came up as "checking" this and that. Then a green line of type came up and said, "Volume Macintosh HD appears to be ok."
Now I'm left wondering why the computer went black in the first place. Aah the mysteries of life. Thank you John for your excellent help with making sure my photos are secure. Perhaps I need a back-up device with more memory space? Or maybe it was something from Amazon's site? Take care and thanks again