Same with latest Opera here. I'm not having script errors but it's so slow. I can't even click any links in forums pages until a few seconds later. This is very disturbing and I believe it's because of the messages parsing for advertising insertion on keywords.
I hate to say it but this is not a technique I am confortable with and now this slowing down makes the problem even worse.
If I find another fx forum with as valuable members as moneytec I'd consider to switch...
-soso