Egw 1.6 ManualEmailadmin not found

Hi,
I’ve installed egw 1.6
email application is working find but I cant find the documentation about email admin

When clicking on help/manual I got this message:

“Page(s) ManualEmailadminEmailadmin_uiListProfiles, ManualEmailadminListProfiles, ManualEmailadminEmailadmin_ui, ManualEmailadmin not found !!!”

Where can I find these help files?
Thanks a lot for your help,
Mhz