Hi there --

One of our user's NIS account cannot access the desktop on one of our
Fedora, Core 2 here, systems. Other user accounts, local and NIS, do
not have this problem.

I believe there is/are file(s) within the user's home directory or local to the workstation that need to be deleted in order to correct this problem, but I am not familiar with them.

Has anyone seen this, and know what the necessary steps are in order to correct it? Thanks.

Something simple that may have slipped by you is to turn off the Network Manager, if it's running.
If it's not, then try running system-config-authenticaion and be sure NIS is on and point it towards the yp server of course. There was a bug with this, but I believe it's been fixed and put out through updates. If your Fedora 10 system is fully up to date and NIS still doesn't work then remove "nis" from /etc/nnswitch.conf

If neither of these work, could you post a bit more detail that may reveal why it's not connecting? Are you getting any errors? And if so, what are they?

If you don't care about saving thte user's desktop settings you can delete the following in the user's home directory:
.bash*
.compiz
.emerald
.gconf*
.gnome*
.kde*
.nautilus
.Xclients*

That should straightent out any user-level misconfigurations - note that there may be others as well, such as ".fluxbox" if they were trying to use the Fluxbox window manager or similar. If in doubt, list their dotfiles (all the files in their home diretory that begin with a period) and we'll tell you which ones to get rid of.