Problem with upvoting/downvoting

I've been using the plugin for awhile now and have been getting reports from using that the question voting (up/down) system isn't functioning properly. When users vote on a question or response instead of registering the vote and continuing to display the question/response, it loads the content from the home page.

This seems to not be a problem for Administrators. I've confirmed the prob occurring on a subscriber account. This happens to me in Firefox and Chrome. In IE when I vote it just loads a blank white page. (though another user is getting the same loading of the homepage in the div where the question/response should be in IE.)

Screenshots:
Before: http://www.becomemagi.com/img/problem/before.jpg
After: http://www.becomemagi.com/img/problem/after.jpg

Thanks in advance for any help resolving this issue.