whenever I open my yahoo mail when using Firefox, a pop up box appears on the upper left side of the screen, it asks the question "do you use the yahoo! toolbar on multiple computers?" and gives click boxes for "Save to my yahoo ID" and "No thanks, just save to this computer". I get no response to clicking on either box, nor will the pop up close if I click on the "X" in the upper right corner of this pop up. It won't close out and it sits right over the top of the email messages in my inbox. All else seems to work fine, but can't get rid of this pop up box....very annoying.