Here is an article about alerts you can configure about corruption.
http://www.sqlsoldier.com/wp/sqlserver/day10of31daysofdisasterrecoverymonitoringforcorruptionerror
Do you have checkdb jobs configured to run on a regular basis?
Jason...AKA CirqueDeSQLeil
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I have given a name to my pain...MCM SQL Server, MVP
SQL RNNR
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