Problems installing CAELinux 2009 from LiveDVD

Hello,

I am trying to install caelinux 2009 from the live dvd
on an imac 27 i7 with a ati radeon hd 4850 graphic card.

The first problem appears at step 3 of the installation.
The keyboard configuration does not work. After I select
french then macintoch and try to continue I get the following
message:
partman crashed
partman failed with exit code 10

and I get nowhere trying any of the suggested options:
quit - continue anyway - try again

Also I tried other keyboard configurations with the same
result.

I would really appreciate any help.

Thank in advance
Michel

Thank you for your answer.

I tried with the USA language and keyboard but
the problem remained the same.
I have to mention here that the installation was
made for a virtual machine using Parallels Desktop.

Also I just tried to make the installation booting
on the live dvd with the options "live" and "install". Each time
it started and finally stopped the process and gave me
the prompt:
initramfs
At this point I don't really know what to do ...
Maybe I will try to boot with another options.