I really don't know how the moron did it considering you have to reach 6 INCHES BEHIND the screen to grab a dry erase marker in the first place but they did. I have an 8" green dry erase mark that I cannot seem to remove. I have tried the dry-erase board cleaner/conditioner as well as Isopropyl Alcohol with ZERO effect.. Does anyone have any other suggestions?
I once bought a uses screen with red wine and marker covered in whiteout.. scrub brush, spay nine, paint thinner and finally bleach.. good as new.. but it was just a cheap vinyl screen.. most higher end screens can not be cleaned like this without damaging the surface.