I haven't poked around the preferences for a while now, but when I went in to "define new tags" settings, all my custom tags were gone - the virtual tags are still there.
Did something change in one of the recent updates to delete them? I'm pretty sure I haven't done anything to delete them.
I do have another portable install on another laptop, is there a way to get them across from there (settings file?)
I'm running 3.4.7771 P.