I think I know what might have happened. I was running on a dual screen at home with GSAK single screen on the second screen only. Now I am away I only have my laptop and I think the dialog is still displaying on the second screen. Most functions seem OK. I will try a reboot of my laptop and see if this fixes it.
Sadly the reboot didn't fix the problem will now try an earlier version.
Sadly the reboot didn't fix the problem will now try an earlier version.