In version 29 you can't refresh the Speed Dial images on the Speed Dial page (right click the thumbnail and choose refresh in 28 and earlier).

Changing the setting as linked by helpful users (above) to the old Speed Dial restores this functionality.... (it lets me see what pages have changed and choose where to go) - its literally the key reason that drew me to Opera....so please folks, don't take the old speed dial functionality away, its why I'm here. Thanks....