Now I've got Vegas Studio on my machine I noticed that some of the fonts I use in PE8 weren't available. It seems Adobe (at least on Win 7) has moved them to a shared resource where they are not available to other programs.
I found them here (on my win7 64bit machine)
C:\Program Files (x86)\Common Files\Adobe\Fonts
You can then import them into the standard Windows fonts and use there wherever you like.
Chris.