Found a bug in my 12" screen... should i take it back?

I just bought a 12" PB 1.5ghz superdrive like less than a week ago, and I noticed that whenever I go to fullscreen mode (like in a slideshow or when I load up Warcraft III or something) the top line of pixels starting from the center to the right side of the screen flickers... so it looks like this flickering bar at the top right hand side of the screen... Should I take it back or what?

 

no... it's continuous.... no pattern to the flickering but it flickers...

 

great... I already put a lot of files an stuff on it... Do I try to get it fixed and not have it for like 3 months or do I get a new one?

 

yeah... I got it at the apple store... I might have to bring it back...

 

well... it happens when iPhoto goes to fullscreen mode or when Warcraft III FT boots up... I think i dont see it during normal use, because there is a slight gap between the top of the desktop and the top of the screen that is unused...

It's funny though... It doesnt do it when I play DVD's...

 

ok... i isolated it more... its when I do fullscreen AND its like full motion animation... so something about the rendering and the video card...

for example it doesnt do it with a picture at full screen, but only I put the ken burns effect on when it starts to move do I see it...

 

um... yeah I called tech support and they told me to reinstall OSX which pretty much did nothing. The next step was to erase everything on my hard drive and reinstall OSX... I think thats kinda BS so I decided not to... I installed 10.3.8 hoping that maybe they had fixed the problem... but the flickering is still there... I also get a stinking suspicion that 10.3.8 is a little slower... Anyways at some point im going to walk into the Apple Store and ask them what the hell is going on...