Lefty, the IDE will not open. After the second message it simply exits. However, I did some searching and I found that in the folder Users\<user name>\appdata\roaming there is a folder called Arduino and there is where the preferences.txt file is stored. I simply edited the file to point to the correct folder location and problem solved. The IDE now runs and I am able to once again work on my project
Good for you, nice to see you are "back on the air".
I have about four different versions of the IDE loaded on my machine and have set up different user sketch directories for each one, but and IDE one opens only wants to look at one place (appdata) so I have to remember to change the file preference option to point to the specific user directory I've setup for each IDE version as I use different user hardware options and user libraries for the different IDE versions. So it's kind of a pain but doable and needed/useful in the long run.