[Users] Console and keyboard setup on VNC

Hello all, first post here :-) When using VNC as the console to access the VM I can't use the portuguese keyboard and see special characters. I tried it with VMs running Fedora, CentOS and Debian. If I ssh the VM, everything is correct on the terminal console. Is this a issue from oVirt or from the VNC server running behind (I guess it's the second). Any help? TYA Alex