Please run the following and post all the results here.
DBCC CHECKDB (< Database Name > ) WITH NO_INFOMSGS, ALL_ERRORMSGS
Take a look at this article. http://www.sqlservercentral.com/articles/65804/
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