Updated to 3633 on May 30. Everyday, during the wee morning hours, I run two full backups and one differential backup. The differential runs between the two full backup operations. Of the last three days, I have had two BSOD's during the verify operation (haven't copied down any of the BSOD details at this point). Operation ran w/o error on the day between the failures. Chkdsk ran w/o error. Is anyone else having a similar problem? Suggestions will be appreciated. Running Win2k full patched. This situation never occurred under the previous build. Am having no problems during normal operation.