Query on Query giving less records

I have a query say A whcih gives me a record set of around 96 records. I have another query B where I select distinct of userid and username from the query A. On the web page when I display from my query B, it get only 3 records. While my debugg mode is On the query which I execute which I get from the debug mode has 8 records in query B. Am not sure why does the web page display only 3 records.
Note: No filter condition is added in query B, its just a select distinct of userid, username from query A.

Please help.

Rgds