Question : Null query causes other queries to return no records

I have an access 2.0 query that references TableA and QueryA. As long as QueryA has a record to return every works fine but if QueryA has no record to return it causes the selected query to return no records as well. Here are my SQL statements.

         
          SELECT DISTINCTROW [TableA].firstname, [TableA].lastname, [TableA].Date, [TableA].requester, Left([file],5) AS Expr2, [TableA].file
FROM [TableA], [QueryA]
WHERE (([TableA].type="Test") AND ([TableA].file<>[SSN]))
ORDER BY Right([file],2), Right([file],4), Left([file],5);

Answer : Null query causes other queries to return no records

is the common field betwen the table and the query this expression
[TableA].file<>[SSN]

try this query

SELECT DISTINCTROW [TableA].firstname, [TableA].lastname, [TableA].Date, [TableA].requester, Left([file],5) AS Expr2, [TableA].file
FROM [TableA] Left Join [QueryA] On [TableA].file=QueryA.[SSN]
WHERE (([TableA].type="Test") AND (QueryA.[SSN] Is Null))
ORDER BY Right([file],2), Right([file],4), Left([file],5);