Dell DDM Monitor Application with U2525H and U2414M dual screen set-up and USB energy menu

Hi

I have U2525H and U2414M connected independently with DP cable to GTX960 video card.

Two questions;

1.

I have latest display driver and latest Dell DDM Monitor Application.  It detect U2525H OK but not U2424M.   necessary setting on OSD menu is enabled but still no go.    Is this known issue? 

2.

Also with U25125H, oddly USB section of energy tab of On Screen Menu ( one that tap on button ) is greyed out.  Should not I can select how the USB hub power behave when screen goes to standby?    What cause this menu to be greyed out?    Factory reset does not affect anything on this menu item.

Note that U2525H was replaced by Dell on last Friday with January build monitor because the one originally I've got has defect on bezel assembly but that USB menu was selectable.   it was April/205 build.  

Thanks for looking.