thank you. try following:
dbcc dbrepair(sybsecurity, ltmignore)
go
and get following msg:
DBCC execution completed. If DBCC printed error messages, contact a user with System Administrator (SA) role.
Number (926) Severity (14) State (1) Server (MYSYB) Database 'sybsecurity' cannot be opened. An earlier attempt at recovery marked it 'suspect'. Check the SQL Server errorlog for information as to the cause.
Number (10334) Severity (18) State (127) Server (MYSYB) Permission related internal error was encountered. Unable to continue execution.
Number (10334) Severity (18) State (80) Server (MYSYB) Permission related internal error was encountered. Unable to continue execution.