Issue with drill down to FAGLB03

We have report painter reports that were linked to FS10n (Balance display) on the report interface (in the report library - GR22) so that when we drill-down on a line item in the report, it will show all the detail postings for that line item from FS10N.

We recently created a new client by copying our current system and applying a patch. We are on ECC 5.0, and the new patch level is 17. When testing this new client, we found that FS10N no longer works. We did activate the new GL but we did not completely turn on all the functionalities. THis is the same as in our other clients (QAS, PRD) and FS10N works perfectly there (QAS and PRD are on ECC 5.0 patch 10).

In the new client, when we go into FS10N, it gives us a message to use t-code FAGLB03. We then changed our report painter library to interface to FAGLB03. However, when we drill down from the report, it's still showing FS10n.

In the new GL, is there another way to configure the report interface? I used t-code GR22.

Thank you,

Lanny