I believe I've found a bug in build 4128, but I wanted to see if anyone else experiences this. I'm using Windows XP Professional SP2 as my guest OS. If I suspend the VM, and then some time later resume it, the clock in the guest OS is off by the amount of time the VM was suspended. If I shut down the guest OS rather than suspend it, the time is correctly synched. So it seems time synchronization doesn't work when I suspend/resume the VM. Is anyone else experiencing this?