After upgrade, the keyboard map has changed "." (stop) to "," (comma)

[PresuntoRJ]

I have no idea what package to look into, but since today's upgrade I can no longer type a "." (stop) or a ">" (grater then) cause I get a "," (comma)

I have set up my system to use keyboards both in USA English and Brasil's ABNT-2, but both seem affected

I think it could be a keyboard map configuration file, but don't know where to look for

What kind of files can I send to help understand this?

$ lsb_release -rd
Description: Ubuntu 8.10
Release: 8.10

[PresuntoRJ (fabio-tleitao)]

I have looked at my /usr/share/X11/symbols/latin , br and us files

They all seem to be setting the keys propperly

    key <AB08> { [ comma, less, horizconnector, multiply ] };
    key <AB09> { [ period, greater, periodcentered, division ] };

But I still get the wrong one when I type the "period"

I was able to reproduce this by updating another system with
sudo apt-ger update
sudo apt-get upgrade
sudo apt-get dist-upgrade

$ uname -a
Linux lumina 2.6.27-7-server #1 SMP Tue Nov 4 20:18:35 UTC 2008 i686 GNU/Linux

[Taupter (taupter)]

In fact I've booted into a live Kubuntu CD, and copied the /usr/share/X11/xkb directory from the liveCD to the corresponding directory in the already-installed partition,(I took the precaution to rename the original directory to something else before copying) and after a reboot it worked just fine.
I didn't have time to pinpoint the culprit file(s), but I hope this information will help,

As a sidenote, I had this problem in two Kubuntu amd64 machines, one dist-upgraded and another installed from scratch. The procedure I described fixed both machines.