Not working in IE

First off, great module! It is exactly what I was looking for to make quests for answers much more intuitive for visitors.

My arch nemesis Internet Explorer (tested in IE9) however spoils the party again, as it doesn't show the results. FF and Chrome are okay.

I tried the dev release too, yet there I get no matches regardless of the keywords I type, so beta release is the only one working for me.

See screenshots for an example.

Thanks in advance!