I have just had an email from toluna helpdesk, thanking me for my email about opinions not sticking. I have been informed that I should have no more problems with this, as the bug has now been fixed. I have just posted one reply and, sure enough, it went in first time.
How about every one else, are you still having problems, or are they sticking first time now? I know this has been a massive problem for every body for ages now, are we finally getting somewhere with it? (I hope so!)