Extra Title Bar in All Stacks

[Sannyasin Brahmanathaswami]

Something bizarre started happening this afternoon

Mac OSx 10.12.3 Sierra
LC 9DP5

Stack are opening with a second title bar underneath the *real* title bar.

see http://wiki.hindu.org/uploads/extra-title-var.jpg

I deleted my settings, removed all plug-ins, deleted settings again, rebooted… stack still appear with a second title bar.

any clues to what is wrong?

BR