Diagnosis
You have selected a linking operator, which is not supported by one orseveral of the content providers you preselected in the "Contentprovider" tab.

System Response
The linking operator you selected cannot be used, as long as there arestill content providers in the list of preselected content providers,which do not support this operator.

Procedure
Define the information requirements in search criteria, before youstart the selection of content providers. To do this, proceed asfollows:
Delete the current, incorrect row and switch to the "Content provider"tab.
Here, delete the preselected content providers from the preselectionlist.
Goto the "Information requirements" tab and create the search criteriawith the desired operators.
Goto the "Content provider" tab again. Now you can select theappropriate content providers.