I am having problems with launching Houdini, suddenly my licence server can not run, and uninstalling Houdini with the uninstall utility does not fix the issue. I think there may be hidden embedded files that are interfering with the licences. How do I find them and delete them? Otherwise my only option seems to be to reformat my hard drive and reinstall everything from scratch.

EDIT: I discovered the problem, OSX had changed my hostname, so I had to change it back to please Houdini.
I'd still like to know how to remove what appears to be a hidden embedded file that references the hostname you had when you first installed Houdini. It is like a trip wire.