Are you using the anoncvs.us.lyx.org mirror of the cvs repository? If so,
then the directory has indeed changed, as described here:
http://thread.gmane.org/gmane.editors.lyx.devel/47733
Please change all references of /cvs to /var/cvs when referring to
cvs.sylvan.com (AKA anoncvs.us.lyx.org).
It's been some time since I last used CVS version of LyX so I don't
remember which mirror I used, but I followed the instructions described
on the "main" LyX.org site.
I don't remember the cvs command, so I tried to click on "Details can be
found here" on the Download page at LyX.org. However I always get a
timeout.
I've read the thread but I still cannot figure out the whole cvs
command. Could you, please, write it down for me? I'm sorry, I don't
have that much experience with CVS so it's hard for me to derive the
command + paths...
We're using LyX 1.3.6 for our publications needs :) But I thought I'd
give 1.4 a try for my thesis...
Thank you for your help,
David