I just purchased one today online with the specs you mentioned during customization.  The subsequent details for the purchase were also as expected.  I ask if this screen had anti-glare (which I did not want) and was assured AG was not available with the screen I ordered.  

Methinks there is an issue for Dell Customer Support to resolve immediately.  I'd phone them tut-suite.

Hmmm..  cannot edit post.  I was just reading another thread that suggested the screens could change (AG vs non AG) depending on the video selected during customization.  I ordered the 3 gig NVidia.  Perhaps, just perhaps, that is why I was told the system I ordered did not have an AG option.  ?  Food for thought.