>>
>>This grid could be based on cursor so users can navigate during 'add' mode and all validatons will be done on save point.
>
>One idea, yes, thanks.

I wld double this + add on additional coloring.
Perhaps new records can be painted differently and at the end
afer validation all wrong lines can be colored with in some attacking
red.
[ Or life threatening / intelligence insulting message :o) ]