Many of the visitors reported that they had faced problem of double/many clicks in IE8. I found the same in many forums.
People suggested to uninstall addons/flashplayer etc. Many other answered it as hardware issue.
one of my user is also facing the same issue. and i am not able to answer him. I seen from the server log and observed that same hits are coming with 3-5 seconds intrval. This is being happened when user clicks on a link to open a page which is having an applet on it.
Please suggest the cause.