Dirty/grainy screen Lumia 920

[nagatofm]

Yesterday I've bought Lumia 920. When I brought it home I noticed that the screen looks like it's very dirty so I cleaned it, but nothing changed. It's especially noticable when using white theme. Looks a lot like the glass was polished with a sandpaper or someone used butter instead of glue when assembling the phone.
Should I return it? Or this screen really should behave like this? Hope you'll answer soon because it's already about 24 hours since I've bought it and I don't want to wait 14 days for them to receive service centre's agreement to change it.
P.S.: I've installed GDR3 preview, should I downgrade before taking it back to the shop?

 

[vaultsurvivor]

Ive had mine since may and my screen has never looked like this... Id take it back, even if its just so you can compare it to a replacement unit. I switch between white and black themes every now and again so i would have thought id have noticed by now... Ive always thought my screen looks fine.