As I said above, if it's CheckDB you're running, you'll need to use the TABLERESULTS option, checkDB does not by default return a resultset. Other DBCC statements do, so it depends on which ones you're working with.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability