XP mode time sync issue booting VM from domain

I have a Windows 7 (Enterprise 32bit) pc and I need the vm in XP mode to be a part of the domain to run certain applications and access resources. I've sucesfully been able to make this go on 3 other pc's but on this latest one, it gets booted off the domain every few hours or at least every day, the event logs show that this is a time syncronization issue as the VM's time gets out of sync with the DC. Maybe this is something really simple but I don't work with vm's a lot and and scratching my head on this one, any advice?

power down the VM,

in AD; reset the account for the VM's object name (machine name more than likely).

Power back on the VM, login and open the command line (as admin)
run this:
net stop w32time && net start w32time
then this:
w32tm /resync /rediscover

This asks the machine to resync the current time; but also, re-browse the network for the network time server (NTP server - assuming you have one).

Reason a physical PC has no problems (it's got a SR2032 battery keeping the clock running when the power is removed. A VM doesn't have that option; so it relies on the host to correctly pass it the current time during the VM boot.

let us know what happens...