I upgraded DPP and somewhere along the line, the folder that digital photo professional opens was set to the desk top. Apparently DPP breaks easily if there are files in its opening folder that make it uncomfortable. Obviously there are many types of files on the desktop to include shortcuts and URLs but the real problem was probably a corrupted JPG file.
It does not seem that this should get reset but I did notice that there is a folder setting that specifies open the last displayed folder. I surmise that the desktop folder was opened and from that point in time onwards, the program will open and break, open and break.
Previous comments in this thread got me on the track when people mentioned that DPP would break if there was a file that made it unhappy. From there it was simple.
Step one – open the folder that the program is sitting on when it breaks, (desktop in my case).
Step two – Select all image files, cut them and move to another folder. I just created a folder called "pics from desktop" and left it right on the desktop. The program only looks at files that are in the root of the folder.
Step three – I created a new folder called "camera uploads" and placed it in the desktop folder
step four – the program will now open as it does not run across any problem files. I open the program, then went to tools/preferences, then set my startup folder to "specified folder" and set it to the new folder that I created, "camera uploads".
This absolutely solved my problem and I would not be surprised but what this may often be the problem for other people who have experienced this difficulty. Be sure to set your specified folder as I did and keep it clean – you will probably not have a problem.