Norton Ghost has been performing well for me for years on this (Windows 7) machine and its predecessors. It still works perfectly on my wife's Windows 7 PC.
Suddenly 2 months ago (last clean backup November 27) it stopped working. When backing up, the progress meter stops at 5%. There is no warning notice that anything is wrong, but when I look at the "hidden icon" at the bottom right-hand corner of the screen, the Ghost logo has a diagonal red line through it and a notice "Disconnected. Unable to connect to the agent. Service not running."
Reading recommendations in reply to similar posts in the past, I deleted and reinstalled the product. The problem is still there.
I can't think of anything new I installed on the machine, or any other changes I made at about the time Ghost stopped working.
Any suggestions?