Please run the following and post the full results.
DBCC CHECKDB (< Database Name > ) WITH NO_INFOMSGS, ALL_ERRORMSGS
Take a look at this article. http://www.sqlservercentral.com/articles/65804/, specifically the section on 'irreparable corruption'
How critical is the data in this database?
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