Well guys, if you do have a bright spot (as I do on my kobo glo) try to look at it in a different angle with full brightness (preferably in a dark room), on my screen, the text under the bright spot (or dead pixel as many members call it) is perfectly fine, so it isn't really a dead pixel, the problem is in the light layer which contains this random bright spots (i have two of them) that's why using the reader without the front light won't let you spot any dead or missed pixels. I can live with it
Seif Eddine