ok update: i managed to update to 10.5.8 with a different distribution.

i was using zephyroth 10.5.2...

i used iaktos 10.5.7 and the updates seems to work well.. but i do have another problem

i miss the driver for my videocard: ati hd 3870

and my sound drivers seems to be buggy... i do have sound but i hear somekind of scratching noise when i listen to something... maybe my drivers are wrong... the soundcard is the realtek rlc883.

thanks a lot