Lumia 720 issue

[impc]

Hi,
I have menu created with NGUI 3.6.1 and Unity 4.5
On android and iOS devices and everything is OK.
On Lumia 720 (windows 8 phone) menu is like this, scrambled lines, some lines look correct (some kind of z-fight?):

For reference correct image from Lumia 925 (w8p also)


Thanks,
Imre

[ArenMook]

Why is the text legible and the rest isn't? Are Quality Settings restricted to "Fastest", thus restricting max texture size to 1024 and limiting your atlas?

[impc]

Why is the text legible and the rest isn't? Are Quality Settings restricted to "Fastest", thus restricting max texture size to 1024 and limiting your atlas?

Quality settings are default (good for w8 phone). And also upper left image with burning rock is not from atlas and is created using "RenderToTexture".
But i will check what quality settings are used.