I know some great bars! Far more fun than fixing this but I
guess you have to.
Was RH reinstalled with your logon (the one you are using
now) and did that have admin rights attached. If it was installed
by an IT person with their logon, start again.
Try trashing the CPD and the XPJ.
Try creating a new project, saving it and reopening it. If
that works, also create a printed output from it.
There are topics on my site about installing RH and opening
corrupt projects.
Let us know how that all goes.
Help others by clicking Correct Answer if the question is answered. Found the answer elsewhere? Share it here. "Upvote" is for useful posts.