If you check the CPU usage and it's not "0%" when PP's status bar is not doing anything (ie. when it's "X minutes remaining..." like in your screenshot above), then there's definitely something wrong.
If it's not the message databases, then there's a couple other possibilities:
1) A corrupt program file. Try downloading and re-installing (do not use an existing download file as it's possible the problem lies there):
https://www.esumsoft.com/download/
2) A corrupt settings (ini) file. I see you have a lot of accounts so I understand "starting over" wouldn't be ideal. Here's what you can do:
a) Access the ini file by going to PP main menu: Tools / Options / Storage; double-click the text "Ini Location" (file explorer opens and selects the file)
b) Exit PP (end task if necessary)
c) Make a personal backup of the ini file
d) Edit the ini file with a text editor
e) Search for:
admin =, if it's not found, then that's fine, do a search for
[POP PEEPER] instead.
f) If
admin = is found, then you want to KEEP this line. You'll note that the
[POP PEEPER] line should be a few lines above this.
In either case, you want to delete everything BELOW
[POP PEEPER] EXCEPT for the line containing
admin =
This will delete all your settings, except for accounts (and their specific settings). If the corruption is within that part of the file, then that should fix it. Alternatively to deleting all the settings, you could manually look through the file and see if there are any strange characters. Strange characters are anything that is not letters or numbers (be aware that some values in the ini file will have a long string of letters and numbers -- this is normal and you should not remove this data). I would only recommend this route if you understand what I'm talking about, but keep in mind -- you do have a backup assuming you followed step #1 above.
g) Save the ini file
h) Restart PP and hope this works... you can expect to see the startup wizard since all your settings are gone, but once you get back to the main window, you should have all your accounts and messages.
As a last resort, you can send the ini file to me (support at esumsoft dot com) and I'll examine it and see if it can be repaired. HOWEVER, keep in mind that the ini file does contain personal information (such as the login/password for your email accounts) but, also, I'm going to be out of town so I won't be able to do this until next week (unless you can send the file within the next few hours).