Another update: IE provides the option of “compatibility view”. If you select that, it makes the styles compatible with IE9.
Meanwhile – have emailed the author of the theme (Ivanov).
Update! It appears to be a bug in the theme (Bamboo). User “rayloc” posted on this same topic. Not sure if he has found a resolution.
http://themeforest.net/item/bamboo-wordpress-theme/discussion/78997
Okay! So I’ve figured out at least the problem: when you go to create a new post, and type the title of the post, that specific title shows up inverted when the page is viewed in IE9+.
I can’t remove the title/header entirely as that destroys my navigation.
Can’t figure out if it’s a plugin, a style issue, or what, but at least I know what the issue is.
Help?