MSSQL SELECT error

I've the following Select Statement that generates errors, could someone tells me why? :(

SELECT TOP 20 * FROM tickets WHERE ticket_ID NOT IN (SELECT TOP 20 * FROM tickets ORDER BY ticket_ID DESC) ORDER BY ticket_ID DESC;

Warning: mssql_query() [function.mssql-query]: message: Only one expression can be specified in the select list when the subquery is not introduced with EXISTS. (severity 16) in c:\Inetpub\wwwroot\schoolProject\admin\show.php on line 437Try this ??

SELECT TOP 20 * FROM tickets WHERE ticket_ID NOT IN (SELECT TOP 20 ticket_ID FROM tickets ORDER BY ticket_ID DESC) ORDER BY ticket_ID DESC

You had it checking the id against all columns - take it you are trying to get the 21st to 40th most recent??