ABP doesn't work with facebook without refreshing the page

[DebbieKat]

I'm having some issues with using ABP on Opera with Facebook. On my mac, I have to select the ABP button in my browser and then refresh the facebook page to make the ads disappear. I change nothing else on it. It has been doing this continuously. I'm a new user to Opera, but have been using ABP for a long time with Firefox and with Chrome with no issues. Most current version of Opera in use and latest Mac OS as well.

[mapx]

is FB your start page ?
what opera version ?
ABP version ?
filter lists ?