getting the follow error message when running browse-start.bat on proxy box to backup VM in backup exec 11d SP3

[2008-09-12 15:43:05.507 'vcbMounter' 944 error] Error: Cannot open disk blklst
:///vmfs/volumes/48c93202-6e9289f0-a32c-001ec9b5a4f9/VM4_1/VM4.vmx-snapshot-8[ES
X Cluster 2] VM4_1/VM4-000001.vmdk@XXX.XXX.lcl:443?xxxx/xxxx. Cannot ope
n disk file: Error : Disk library failed (Cannot access a SAN/iSCSI LUN backing
this virtual disk. (Hint: If you are using vcbMounter you can use the option "-m
 ndb" to switch to network based disk access if this is what you want.) If you w
ere attempting file-level access, stop the vmount Service by typing "net stop vm
ount2" on a command prompt to force vmount to re-scan for SAN LUNs and re-try th
e command.). Unable to open 'blklst:///vmfs/volumes/48c93202-6e9289f0-a32c-001ec
9b5a4f9/VM4_1/VM4.vmx-snapshot-8[ESX Cluster 2] VM4_1/VM4-000001.vmdk@XXX.XXX.lcl:443'. Failed to configure disk scsi0:0.
[2008-09-12 15:43:05.507 'vcbMounter' 944 error] An error occurred, cleaning up
...