need advice whether to return a plasma

[zoon_ii]

I bought a samsung 42" plasma 720p, and am more than satisfied with it. other day, my g/f and i forgot to turn off a dvd program, and the menu was up for about an hour. there was some slight IR, and i ran the anti-IR programs, namely the white wash-out. i was looking at the screen while it was just white, and noticed in the upper right hand corner a black dot. hmm...shouldn't be there i thought since it's a white wash-out program. well, just from my own guessing, i'm thinking it's a burnt out pixel. it's not blue, just black. no color feed at all. it drives me nuts now though, because i look for it all the time, and it's distracting me from my viewing experience. i called circuit city and they said they'd take it back, but now i'm worried that when i exchange it, that i'll just get another set that has this same problem.

should i take it back, i mean, it's just 1 pixel, or should i just let it be, because i'm wondering if nearly all plasmas have some sort of flaw.

thanks in advance for your input.