BI Display datasource in source system error: connextion via ALEREMOTE user

Hello.

In our BI 7.0, in RSA1 transaction, when we try to "display datasource in source system" the system shows the error message:

"Screen output without connection user".

This is due to the fact that it tries to connect to our source system with the user ALEREMOTE and not with the user dialog type user.

As ALEREMOTE is a system type user, it doesn't accept any dialog screen.

Can anyone can tell us how to correct this ?

Regrads.