Unable to move ‘Trade (Services)’/’Trade-City’

… out of ‘General’ to its own window on at least two of my characters, my Human Warrior and my Draenei Paladin (working fine on at least eight other characters).

Normally, when trade appears in ‘General’ I can click on it, a tiny window pops up and I can click on the ‘Open new window’ option and then all that trade goes in the new window and out of ‘General’.

But on both these character I cannot click on the trade descriptor of the advertisement when in appears in ‘General’ at all.

I only have one addon (BeQuiet) and this was happening to my warrior before I reinstalled it after returning about a month and a half ago.

Also, on several on my characters, I have to reset it every time I log onto them.