Half of main menu has no icons.

Bottom half of the main menu has no icons. This is with any icon theme. How to restore the normal appearance?

http://static.itmages.ru/i/10/0308/s_1268052748_146452bfe6.png](http://itmages.ru/image/view/24018/146452bf)

Nevermind. This was because of option not to show icons enabled.