This bug still exists in A775 pro beta!
I tried adjusting the mouse speed and this doesn't help.

For me to upgrade my developement version, I need to buy a new computer !!!

I don't understand why only I am having problems. (Only in A770 or higher WED on my Laptop)

It has only happened since the slice wire and slice plane tools were added to WED, could this be a clue?

Jethro.