Discoloration or visible stain in Dell XPS M1210

The XPS M1210 I received from Dell on July 24th has visible stain or discoloration. It appear in 2 areas. This notebook will be returned to Dell due to sound card issue but I noticed yesterday the visible stain in 2 areas (encircled area in the image below):


That stain is caused by the rubbers in the monitor! How come? you might ask... it's because the built-in camera can become warm at times then the fan is blowing some hot air at that corner which means the rubbers in the LCD beside or near the built-in webcam and the fan is somewhat causing that. Ugh..

I don't know if there's a fix for that LOL ... other than we must not close the lid of the notebook if we know it's still warm.

The new and replacement notebook I received few hours ago don't have stain yet. Now I know that the rubbers can caused such stain in the notebook... I'm not going to close the LID as soon as possible!