Hey,
i didn´t know where i have to report a issue with the dokuwiki template. Hopefully this is the right place.
As you see on the attached image the sidebar will perform a line break if the text is too long.
I reported this first to the indexmenu developer at github (see here:
https://github.com/samuelet/indexmenu/issues/49) But than i realized that we havn´t got this problem with the vectore template. So maybe the bug is in the dokuwiki template?
This appears only on the IE8, IE9 and IE10. Firefox and Chrome are working well.