Received notice to update my VMware Workstation 8 setup to 8.0.3 build 703057.
I downloaded and installed the update. It didn't require a reboot in the middle as it used to do with 7.x (which is nice).
When finished, I launched it. None of my "Favorites" were shown. I had to re-open all of my stored VM's one by one.
Each one I opened said it couldn't open the VMX because it was in use by another process, even though no virtual machines were powered up (before or after the update).
Went to open one of my VM's and it said the VMX was not a "valid configuration file" and refused to open it.
I was able to open several other VM's. Each one prompted to update VMware Tools.
I updated VMware Tools in each one, did a VM restart on each, and saved new Base Snapshots for each one.
Total time consumed: 1 hour.