First issue:
I made the mistake of running Pidgin once. I configured no accounts and closed it. Now, every time I log in, it runs and wants me to create accounts. I've looked in .kde/Autostart and did not see Pidgin. How do I stop it from running each time I log in?

Second issue:
Some of my icons are missing. For instance, the icons used for the 6 day forecast in Weather Forecast (plasmid? plasmoid?) are missing, instead showing only a page with a question mark and an upturned lower-right corner as the "weather" symbol for each day of the six day forecast.

Also, I get the same question-mark icon for Settings / File Manager and Settings / Removable Drives and Media. I followed this icon rabbit hole for a while and just ended up thoroughly confusing myself.

Thanks in advance for any help!

I can help with the Pidgin issue, open/close every thing you want to start each time you reboot then logout using the kmenu and next time you boot it should load the same programs that where open last time.

Brilliant! Thank you for that.

Now I wonder in which file the system sticks those things to run? ;vD

I have looked in the past and lost interest to be honest i don't remember looking to hard.

I've used kmenu editor to get icons back.

True, I can do that to set the icons for File Manager and Removable Drives and Media, but that doesn't help with the Weather Forecast icons.

I was thinking that the two were related, but possibly they are not.

Thanks, though, I appreciate your help.

Make sure you have oxygen icons package installed.

If you upgrade with slackpkg be sure to run 'slackpkg install-new'

Yes, I did. And I just re-installed oxygen icons, gnome icon theme, kdeedu, kde plasma stuff, tango icons, and a couple of other things with 'weather' pngs list in their /var/log/packages entries.

It didn't work. :v(

If it matters, I've been upgrading with current about every month or so for a while and these disappeared a few updates ago.

Thanks, though.

That's part of session management. Just quit Pidgin when it starts, log out, and log back in. That should solve the problem.

Ah, and now I've changed my System Settings / Advanced / Session Manager. Even better. ;v)