If this happens, try forcing the reload a second time. Even if you can't force your browser to ignore its cache, your browser will ultimately remove the temporary copy of the ad from its cache and the ad will stop appearing on that page. You might run into the same browser-caching problem if you have turned blocking off in order to download an ad or other graphic that had been blocked. Otherwise the graphic you are trying to unblock might not be downloaded and might not show up in the Ad List for unblocking. We recommend that you flush your browser's cache once after first installing our software.
Instructions are here .