Thank you for your message.
Yes, that message only appears if some conditions are satisfied (described here
As for the display problems I think that this might have something to do with non-standard scaling settings for that desktop. Also , could you try to bring the taskbar back to a "one-line" display and see if the warning message shows ok?
I did indeed initially install it that way, but after the issue occurred I uninstalled it and then tried to re-install with the installer file from the RU website. However, the issue is still present.
To reset this message you should clean up the Host settings from the registry. They are located in HKEY_LOCAL_MACHINE\SOFTWARE\Usoris\Remote Utilities Host
Hope that helps.