Try reading these articles Q259851 and Q182903 from MS. The procedure I followed was as follows: 1. Determine if store is corrupted = eseutil/mh (Of course the store is corrupted!Duh!) 2. If store is corrupted then = eseutil /p 3. If repaired run clean up = eseutil /d 4. If cleaned up check integrity = eseutil /g 5. For good measure = isinteg -s servername -fix -pri (priv) -test alltests 3 times * you can proably get it up after number two if the repair is successful * step 2 actually defrags the database hope this helps