[horde] Need help with understanding bug

[Matiss Jekabsons]

If i install Horde webmail - there is not working button OPTIONS. When
clicking OPTIONS it just opens INBOX again

If i install Hirde groupware-webmail - it even not loging in, only shows
login screen. And after login there is blank screen, but in log file
shows that i am succesfully loged in

Only Horde groupware is working just fine. But there ir no mail client,
what i really need :(

Any sigestions to fix it?