Oh yeah, fixing it so the quote isn't there any more solves the problem, that's for sure. Of course, on the Central, editing stuff on the hard disk is tricky if you don't have a USB keyboard to get a shell. Mike helped me solve the problem by writing a little utility that could delete a FID via the standard protocol. I erased the 0 and 1 fids and added the file again and the problem was solved.

I'm just concerned that it might happen again to me or to someone else, so I'd like to get to the bottom of why a quote messes up the Central so we can find out where the work-arounds need to be implemented.