Is this correct, i.e., that there is no "stable" version of this software? I ask because when I use this version, my machine soon develops a problem with screen resolution. I just want to verify that the version I have is the latest correct one.

TIA,

Bill

The BOINC package in Ubuntu 22.04 is incorrectly compiled and should not be used. You should use the package from the Ubuntu BOINC PPA.
https://launchpad.net/~costamagnagianfranco/+archive/ubuntu/boinc

I installed BOINC as instructed on https://boinc.berkeley.edu/wiki/Installing_BOINC_on_Debian_or_Ubuntu. Are you saying that 22.04 already had a version of BOINC that is incorrect? If so, I didn't use that one anyway, but my question still stands whether the instructions as indicated result in a valid installation. Everything seems to work fine, except for shutting down all the processes (other message posted here).

Many thanks,

Bill

If you are using the distro provided BOINC, which is version 7.18, that is the improperly grabbed version by the distro devs. That version was solely written for Android users. Not x64.

It is somewhat usable but has many quirks that were not intended because the target platform is not what is actually in use.