xset cannot disable bell?

[Benjamin Kaduk]

Hi all,

I took a (long-overdue) ports upgrade a few days ago, and after rebuilding 
everything from scratch, I find that I can no longer disable the X bell 
with 'xset -b', either in my .xinitrc or from an xterm.  Other 
permutations such as 'xset b off' and 'xset b 0 0 0' also have no effect.

This is with:
xset-1.2.2_1        User preference utility for X
xterm-276_1         Terminal emulator for the X Window System
xorg-7.5.1          X.Org complete distribution metaport
xorg-apps-7.5.1     X.org apps meta-port
xorg-cf-files-1.0.4 X.org cf files for use with imake builds
xorg-docs-1.6,1     X.org documentation files
xorg-drivers-7.5.1  X.org drivers meta-port
xorg-fonts-100dpi-7.5.1 X.Org 100dpi bitmap fonts
xorg-fonts-7.5.1    X.org fonts meta-port
xorg-fonts-75dpi-7.5.1 X.Org 75dpi bitmap fonts
xorg-fonts-cyrillic-7.5.1 X.Org Cyrillic bitmap fonts
xorg-fonts-miscbitmaps-7.5.1 X.Org miscellaneous bitmap fonts
xorg-fonts-truetype-7.5.1 X.Org TrueType fonts
xorg-fonts-type1-7.5.1 X.Org Type1 fonts
xorg-libraries-7.5.1 X.org libraries meta-port
xorg-macros-1.15.0  X.Org development aclocal macros
xorg-server-1.7.7_3,1 X.Org X server and related programs

The base system is:
FreeBSD hysteresis.mit.edu 9.0-CURRENT FreeBSD 9.0-CURRENT #29: Thu May 12 
23:38:56 EDT 2011 kaduk at hysteresis.mit.edu:/usr/obj/usr/src/sys/GENERIC 
amd64
from sources of 19 February (crikey, that's almost a year old!).

Thoughts on whether updating the base system is likely to help, or further 
diagnostics to take?

Thanks,

Ben Kaduk