Well, first of thanks for your responses and ideas.
I do not run MacKeeper or other utility.
The only thing that runs in the background is Mail - Checking every 5 minutes for new mail, that's it.
Is it possible that ID is not compatible with new machines? New Graphic Cards? Or MacOS 10.8.3?
Why is everything running smoothly on my older Mac and on my new Mac it's a disaster???
David