Have a PC with Outlook that has a refresh issue when trying to read a long message. Open the message, scroll down (or up) and the lines are condensed, overwritten, act like an accordion. They collapse and expand again.
Have updated the video driver, BIOS, changed the signature font, checked the mouse settings, removed unneeded add-ins, removed speech recognition, reset the Outlook view, repaired Office, checked for malware, ran ccleaner, swapped out the mouse and keyboard.
This happens with any long message on any of the 3 screens the user has. However, when I remote in, the problem clears until I get out of the PC. This does not happen with any other software on the PC.