query reg the sign on

[gshilpa24]

Hi,
I have a probelm in the report. When ever i try to run a report it is prompting me the error as below and also prompting me to enter the user name and pwd. Can anyone please let me know how to remove this signon ? My requirement is it should not prompt me for anything. The report should run directly. Please let me know where i should go and change.

I tried to change in directory->cognos->datasources ->ABC (data source) but it doesn't work. Please help me in this regard. Thanks for the help.

ERROR:
An attempt to connect to the data source failed

Data Source:
ABC

User ID:

Password: