Until recently there were no problems with my companys' SQL server, however lately the services have hung during the night. The backup and maintainence routines are unchanged. Daily maintainence backs up the database's and backup exec does it's job during the night. The application log lists the hang as an EXCEPTION_ACCESS_VIOLATION and I can not get much out of the MSSQL log either only that the maintainence completes and that the exception is caught. No service packs have been applied.