Adblock Plus for Opera 1.3.1 + Opera 12.10 on Windows 7 Pro 64 Bit
1. Make sure you are subscribed to EasyList Germany+EasyList.
2. Go to http://www.computerbase.de/
3. Reload the page
4. Unhidden space and ad (affected filters: ##.adbox-wrapper and computerbase.de##a[style="color:#000;display:block;padding:10px 7px 8px;position:relative"]) on the right side appear although they were filtered on the first visit