I assume you're using Firefox as Browser?! I noticed the same behavior but regarding to Klaus, this is not possible
I think it has something to do with tweens. If the autorotation starts while a tween is running/active, it sometimes happens that the autorotation goes the wrong direction, even if the autorotation-speed is set to a positive value.
I posted this and some other bugs/strange behaviors here some time ago
http://www.krpano.com/forum/wbb/index.ph…d&threadID=6526
Unfortunately it's in german

But with google-translation you should be able to follow!
BR
Nupsi