POP UP Occurs when i cancel ESS... how to deactivate this?

Hello there,

i have a Problem in our Consolidation Portal.

We deployed SP18 in the Portal.. after that we have now a Problem in our ESS...

When i go to ESS and fill in some DATA and Click CANCEL (German: Abbrechen)

A Pop Up Occurs:

http://img13.imageshack.us/my.php?image=portal.jpg

As you see in the Image above...

In out Testsystem the Pop Up do NOT occur... But i cant find the config where i can config this...

I want that the POP Up NOT occurs.. when i click on cancel it should be load the entry site...

Thanks for your help

Regards

Bjoern