myDSL Extensions (deprecated) :: dosbox keyboard problem

I've installed DSL 1.4 on a pendrive and managed to boot my computer with it (with 5-way).
Then I run xsetup to confire my keyboard (portuguese).

When I start dosbox.dsl some keys don't work (all those that are diferent from the english keyboard)
Does anyone know a way to solve this problem?

Thanks
Luis

original here.