Scripted shutdown - Netware 6.5 - Not working. Why?

I have scheduled the following batch file to shut down  our virtual machines (so that the backup job may read the files) using GSX 3.2.1 on a Windows 2000 host:

C:

cd "\Program Files\VMWare\VMware GSX Server"

call vmware-cmd "C:\Virtual Machines\psdtsc42k\win2000Serv.vmx" stop

call vmware-cmd "C:\Virtual Machines\PSDTest-1\winNetStandard.vmx" stop

call vmware-cmd "C:\Virtual Machines\psdfs8\netware6.vmx" stop

Then when the backup job completes,

C:

cd "\Program Files\VMWare\VMware GSX Server"

call vmware-cmd "C:\Virtual Machines\psdtsc42k\win2000Serv.vmx" start

call vmware-cmd "C:\Virtual Machines\PSDTest-1\winNetStandard.vmx" start

call vmware-cmd "C:\Virtual Machines\psdfs8\netware6.vmx" start

Unfortunately, the Netware 6.5 box never completely shuts down - does not get backed up, and does not (of course) come back up.

I have the latest VMWare Tools installed... can anyone lend a hand and help me figure out why?  thanks