Error message on page

I belong to a secret shopping group and I seem to be having difficulties with entering my reports to them. The only thing that it does is on the very bottom of the screen it give a Internet Explorer warning that says: Problems with this web page might prevent it from being displayed properly or functioning properly. In the future you can display this message by double clicking the warning icon displayed in the status bar. My boss has no trouble entering the report from her end….so she said it might be that I have too much on my computer. But, I really don’t know how to fix this problem….is there anybody out there with some ideas?