As per the information below I get the following messages, the store seems fine everything seems to be operating with some hiccups but nothing major. I get this same set of errors every night the public mail store is fine.... Besides restoring the mail store, does anyone have any suggestions on what action to take?? Event Type: Information Event Source: ESE Event Category: Online Defragmentation Event ID: 702 Date: 26/08/2002 Time: 1:15:04 AM User: N/A Computer: ITSERVER Description: Information Store (3060) Online defragmentation is resuming its pass on database 'C:\Program Files\Exchsrvr\mdbdata\priv1.edb'. then Event Type: Error Event Source: ESE Event Category: Database Page Cache Event ID: 474 Date: 26/08/2002 Time: 1:15:06 AM User: N/A Computer: ITSERVER Description: Information Store (3060) The database page read from the file "C:\Program Files\Exchsrvr\mdbdata\priv1.edb" at offset 1627783168 (0x0000000061060000) for 4096 (0x00001000) bytes failed verification due to a page checksum mismatch. The expected checksum was 3103874810 (0xb9015efa) and the actual checksum was 3103809274 (0xb9005efa). The read operation will fail with error -1018 (0xfffffc06). If this condition persists then please restore the database from a previous backup. then Event Type: Warning Event Source: ESE Event Category: Online Defragmentation Event ID: 705 Date: 26/08/2002 Time: 1:15:06 AM User: N/A Computer: ITSERVER Description: Information Store (3060) Online defragmentation of database 'C:\Program Files\Exchsrvr\mdbdata\priv1.edb' terminated prematurely after encountering unexpected error -1018. The next time online defragmentation is started on this database, it will resume from the point of interruption.