Lost facility with xdvi

[Timothy Murphy]

Xdvi on my Fedora-11/KDE machine
no longer seems to keep up with changes in the DVI file.

Previously, I could latex foo.tex in one window,
and run "xdvi foo" in another window.
Then if I edited foo.tex and latex-ed it again,
the xdvi view was automatically updated.

This no longer seems to happen.
Is that a change in TeX-live, or in Fedora,
or have I inadvertently changed my setup in some way?