I am a proud owner of iMac 24" until this unexplainable "screen stains" if i may call it started appearing, for me its more of a dust buildup than screen burn, i read alot of forums lately and i found out that the problem is VERY common on all iMac 24". I've been using my unit for almost a year now (just got an email reminding me of warranty extension) a recall of this batch will be greatly appreciated. Its my first MAC and i instantly fell in love with it, but it was short lived because of the screen thing. I think Apple don't make the screens for this product. Please advise the best thing to do.