Opera Version 34.0 doesn't appear to have any options either in setup or advanced setup to disable Speed Dial???
Previous versions of Opera apparently had an option 3 that could be applied to the SpeedDialState flag to disable it ... this flag doesn't show in any file or registry nor does it work from the url line.
Setting a shortcut to open Opera in a new window ("C:\Program Files\Opera\launcher.exe" --new-window) has 2 issues:
the very first time it runs Opera it opens 2 windows the first one which was set to about:blank (that is what I configured the start up to be) ... the 2nd window opens "SPEED DIAL"
if Opera is already open then only one window is open but again it opens "SPEED DIAL"
As Chrome has just announced it is discontinuing support for XP, I was hoping to still have an alternative browser to FireFox ... Opera appears to be fine in all other respects