Hi trustpar-jdodd ,
If this only happens when screen control is active via Central, it may be enough to Disable 'Display accelerator' in the settings.
In rare situations, some customers tried installing the Central Host Software without the Mirror Display driver, or updated the Display driver in the dell machine.
Some related articles for you to look into:
https://support.logmeininc.com/pro/help/using-logmein-on-headless-computers-with-no-monitor-attached
https://support.logmeininc.com/pro/help/how-do-i-disable-or-uninstall-the-display-accelerator
I will try this! I did update the display drivers with Command Update, but hardware acceleration could definitely be what's causing the glitch
