hi,
i too encountered opera freezing after clicking some speed dial inside some speed dial cluster; all buttons become irresponsive except the exit icon only.
however, i found a temporary work-around - better than re-starting opera everytime it freezes...until a fix is uploaded.
Everytime a website is clicked, i immediately open a new tab..and waited in new tab..until internet speed is around 5k/s (very little background activity)..the trick is not to dwell on the loading tab but on another blank tab or another successfully loaded tab.
So, opened multiple tabs, wait on blank tab or read loaded page while waiting for other sites to be fully loaded..