Getting error on 5.5.0 Windows 2003 client, anyone seen this

07/21/2008 20:30:17 ANS1327W The snapshot operation for 'D:' failed with
error code: -1.
07/21/2008 20:30:17 ANS1228E Sending of object '\\derby\d$' failed
07/21/2008 20:30:17 ANS5283E The operation was unsuccessful.

07/21/2008 20:30:17 ANS1377W The client was unable to obtain a snapshot
of '\\derby\d$'. The operation will continue without snapshot support.

07/21/2008 20:36:53 ANS1327W The snapshot operation for 'C:' failed with
error code: -1.
07/21/2008 20:36:53 ANS1228E Sending of object '\\derby\c$' failed
07/21/2008 20:36:53 ANS5283E The operation was unsuccessful.

07/21/2008 20:36:53 ANS1377W The client was unable to obtain a snapshot
of '\\derby\c$'. The operation will continue without snapshot support.

07/21/2008 20:54:04 ANS1512E Scheduled event 'OMS_DAILY55' failed.
Return code = 12.

Tim Brown
Systems Specialist - Project Leader
Central Hudson Gas & Electric
284 South Ave
Poughkeepsie, NY 12601
Email: tbrown AT cenhud DOT com <mailto:tbrown AT cenhud DOT com>
Phone: 845-486-5643
Fax: 845-486-5921
Cell: 845-235-4255