clangrounds.com, I don't know if this is the same thing as what you experienced, but I did noticed that when I went to upgrade to 2.2.7, it screwed up my templates within the admin cp. If you notice, the templates are still there they just ARENT under the vbindex template category anymore.
Here's a quick tip: Back em up as html.
Run the vbindex template installation ONLY.
Then reimport your vbindex backed up templates.
It worked like a charm for me.