>Are the first five pages of the same class as the others?
>
>They're all the same.
>Actually the 1st, 5th, 6th, 7th and 8th pages show correctly on the laptop.
>Pages 2, 3 and 4 show the darker background hue.

With regular suspects out of the picture, you can only compare what amembers() may return for one of each kind at runtime.