@MikePig-
Don't panic too much! I know I've seen this error before on my 4000 w/CV643d. It scared the sh!t out of me, too!
It was a faulty configuration, but damn, I don't remember what was faulty, or what I did to fix it. Ugh... What version of CyberGraphX are you running? Seems like I remember that error WAY back on like version 2.x series.
Hmm... Actually, I just found my notes on it. D'oh! I was an idiot, and this may not help you. The Cv64/3d does not HAVE a Roxxler. Thus, if you try to enable it, you will get that message. If you have a regular CV64... eeek, it may have a roxxler problem. :-(
(Of course, if you have a CV64/3d like me, it just confirms that, indeed, you do not have a Roxxler. ;-) )