.85 changed the way the spellbook worked, so that when you opened it the last spell you cast would be pre-selected for you. The last spell I cast was Arcane Monolith. I opened the spellbook again intending to cast a city enchantment, and it opened looking like this:
In order to get to the city enchantments I have to page back. But only page forward is enabled (note the page corners I highlighted). I can't page backward by clicking on the lower left corner. If I click on the lower right corner to page forward, the page doesn't turn, but page backward becomes available.
