Rated 4 out of 5 stars

I found the problem is in the setting of SpeedDial Option's Default setting .In the "advance" page 's "size" group the "Maxim pixel" size default value is "-1" you should set that to bigger
than the Min size and fit your screen resolution.then the Speed Dial will work fine again.(Sorry I use the Chinese version the name of parameter is from My guess)

This review is for a previous version of the add-on (0.7.2.6).