Host OS: Win7 SP1 x64
VMware Workstation Technology Preview 2013 1245816
Guest OS: Win XP SP3 x86
Sometime when I switching between VMs, the VM I switched to will show a black screen (see attachment).
However the it is not crashed nor dead, you have to make a screenshoot or pause/resume to make it display.
I have the support data attached. You can PM me for the password if you want to investigate.