there is a black spot on top rite of the screen on my imac 21 inch.
You appear to have a faulty LCD screen in your monitor section and would need to take it in to an Apple Store or Authorized Apple Service Center.
Hope this helps
well thanx for this kind gesture , anyways i have a protection plan and an engineer is coming tomorrow to check it. allthough it's a small black spot but I've paid for it. so let's see how it goes. thanx again.
Retrieving data ...