Has anybody ever dealt with this error upon starting a db: ORA-00600: internal error code, arguments: [2662], [1922], [3602121928], [1922], [3607967151], [8389130], [], [] This is 8.1.7.4.0 and I have looked at the metalink note: 28929.1 there is a difference between SCNs : [3607967151] - [3602121928] _________________________________________________________________ Color coding for safety: Windows Live Hotmail alerts you to suspicious email. http://windowslive.com/Explore/Hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_safety_112008