Chosen Solution
On my 24 inch Cinema Display why is there a white mark that appears to be condensation always appearing on my screen?
The outer glass is attached to the display with magnets and is not “sealed”, I suppose with the right atmospheric conditions you could experience condensation.
If you find out let me know my Visio has gotten worse looks like drips on the inside of the screen ,it has never been wet.
I’d say you have excess humidity if you never opened it or something. maybe rent a dehumidifier and see if that helps.
