Thanks for the quick workaround!
I found a big bug in the lastest version.
When you want to edit a skin, everytime you save it you must go to the skin informations dialog and set the base resolution of your skin (he's always not updated).
Otherwise your skin will make a ERROR 5 in NMC.
Sorry for this issue but i cant just correct the bug as i'm currently reworking on the entire NSW interface.
This new updated version will come this week, so just a little patience.
Thanks @ all.
NS - neocar suite