vmware 4.1 clearing snapshots & ghettoVCB

i run ghettoVCB for taking snapshots.  it works.
sometimes, things happen and the snapshots don't go through.
i'll get a spiffy messages with:

Snapshot found for sillyvm backup will not take place

How do I remedy this?

ssh in, and issue:

# vim-cmd vmsvc/getallvms

...
128    sillyvm          [datastore1] sillyvm/sillyvm.vmx  sillyOS  vmx-07   
...

# vim-cmd vmsvc/snapshot.get 128

Get Snapshot:
|-ROOT
--Snapshot Name        : ghettoVCB-snapshot-2013-04-29
--Snapshot Desciption  : ghettoVCB-snapshot-2013-04-29
--Snapshot Created On  : 4/29/2013 17:43:44
--Snapshot State       : powered off

# vim-cmd vmsvc/snapshot.removeall 128