turkish alt q keyboard layout fails on X restart on us keyboard

Physical keyboard I am using is US.

I am trying to use turkish characters like ö (Alt+o) and ş (Alt+s). To do this I
choose: Preferences>Keyboard>Layouts>Add>Turkish>Alt Q and
Preferences>Keyboard>Layouts>Move Up (Turkish Alt Q).

Using this, I can type these turkish characters.

However, after rebooting or restarting X, although the Turkish Alt Q is selected
and appears on top in Preferences>Keyboard>Layouts, the characters do not
appear. To be able to use these characters, I have to
Preferences>Keyboard>Layouts>Turkish Alt Q>Remove, then
Preferences>Keyboard>Layouts>Add>Turkish>Alt Q and
Preferences>Keyboard>Layouts>Move Up (Turkish Alt Q). I have to repeat this
after every reboot or X restart, which is an annoying bug.

Expected is not doing this after every reboot or X restart.

Please let me know (through this report or by emailing <email address hidden>)
what output you need.
My bug search did not yield any similar errors, possibly because not many want
to use Turkish Alt Q with a physically US keyboard. However, this bug must be
dealt with to further promote ubuntu in the Turkish American community.

I am using a hp pavilion zv5120us laptop with Ubuntu Linux 5.10, currently (as
of 10.23.2005) up-to-date.