I have a small system that is written with a VB 6.0 front end which accesses Crstal. The database used is SQLServer 7.0. The sytem works fine with the ODBC data source specifies SQL server authentication. However, when we try to switch to NT authentication, the system blows up when it tries to activate the crystal report. Both ids (sql and NT) are defined to sqlserver. When the system accesses sql tables and such it is fine, but as soon as it tries to activate the report (Crystal) it blows. Is there something I am missing in regards to security when switching authentications that is relevant to Crystal? Thanks appreciate any hints you can give me