"break line" tool

[crisw]

Don't know if this is a common problem; I've searched the forum and don't see any other reports of it...

I am having great trouble with the Break Line tool. Single-clicking to produce a pivot point works great. But, 9 times out of 10, double clicking to get a complete break results in a pivot point being inserted and then the DBX for the line being opened, instead of a complete break. I've tried all different double-click speeds and all different settings for my double-click speed in the Control panel, but none seem to work. It does work sometimes- just not with any consistency!

Any ideas?