Opening a database on web

Some strange behavior :

webserver has 2 virtual webservers :

x.com - home url : apps/x.nsf

y.com - home url : apps/y.nsf

i will open a database : http://x.com/apps/z.nsf

  • loginscreen appears

  • I enter username and password

  • server will always redirect to apps/x.nsf (= home url)

  • same ‘problem’ with y.com !!!

when i will open z.nsf when i’m already authenticated : no problem

please help.