After making a new post, Opera 8.5 doesn't redirect to the thread

post added, but page not reload
post will be visible after hand page reload

Yes. It's true and for long time I think to propose a small command for reloading after posting to be added somewhere.

Nobody from us knows the reason, why it happens only in Opera and works in all modern browsers. It's a usual server's redirect and probably more related to this mystery browser, else to miniBB itself. You may try to enable $metaLocation setting, then it should work 100%.

yes, with $metaLocation redirect work correctly, but is not "very fine"

Edit templates/go.html and make it as fine as you want.

tnx