Another problem with my D90, dead pixel?

[Patagonia]

At this point I`m very disappointed with the camera, first it was the flash not closing and 2 cracks on the body after 20 cm drop inside the camera bag, then, one year later, the viewfinder LCD froze for ever and needed replacement. Finally today I received back from service (from the viewfinder problem) and I took some photos for making sure there was no dust on the sensor because of the service, result? No dust but found what I believe it`s a dead pixel.

I put two screen shots to see if someone can confirm what is this, is there a longer guarantee for the sensor or is it just the usual 1 year? my camera has already 2 . I checked some photos taken before service and its also there so it has nothing to do...

Photo has 4288x2848 pixels, the first is a 1:1 capture in my 1280x800 Macbook screen and the second one is a 11:1 zoom.




Any thoughts welcomed...

regards