System Creation problem in EP

Hi All,

I am trying to create a system to connect my portal to the R/3 backend to execute business package.

All the entries goes well like system name,system alias,ITS nae etc.

When I click the personalize link to map my user id for the sytem created it is throwing the following error :-

There is a configuration issue which leads to problems when accessing user mapping data for the selected backend system <system name>. Contact your system administrator.

I am doing it on EP6.0 on SP14.Am I missing something.The same error comes for every user.

Also I did the same thing in Sneak preview version it was working fine and i was able to connect to the R/3 backend.

Also when I go to Useradministration -> User mappping I am not finding any default system under Logon data drop down.I am wondering why?

Expecting an early response.

Regards,

Balaji S