"An unknown application is trying to change default search engine."
This message appears everytime I start Internet Explorer 8. The choices are keep my original search engine or change it for the search engine from the default application.
The problem is I don't know what application that is as I have not installed anything in the last while. The problem just started last week. How can I find out the "unknown application" and how do I remove this from bugging me every time I start IE8.