IE 10 seems to often have Ajax issues. So you can just turn off Ajax if you want to keep your IE10 users happy.
Seems that MijoPolls uses the exact same database structure as the old "Ace Polls". Just copy the Ace Polls database tables and change the table name prefixes to mijopolls and your existing Ace Polls work fine in MijoPolls.
We put the component into an article page using jwrapperbot - so the sermons are shown seamlessly along with other page content, without needing to click on a different menu to see the nice audio sermon content displayed by the component.
Thanks for this terrific extension!