I installed ABP on my dad's laptop for him, and it appears to be functioning as it should, but no ads are blocked anywhere on the internet. The system is Windows XP sp3, FF version 3.5.7, ABP version 1.1.2. The subscription list is the USA Easypack one (works on my own computer). I can manually block individual ads, and they show up in the filter list, but nothing works automatically as it should.
I have NO IDEA what to do, I've searched Google and can only find obvious answers e.g. not having subscriptions, and I have all those things covered. Please help. Thanks.