[Plugin: Outerbridge HumanCaptcha] Swedish not supported?

HI. Thanks for a great plugin. My swedish characters å, ä and ö are not getting transcoded correctly – instead I get Ã¥ ä ö. Even though I use UTF-8.

I Googled this: http://stackoverflow.com/questions/5127744/how-to-convert-these-strange-characters.

Thanks!

http://wordpress.org/extend/plugins/humancaptcha/