Thank you for your answer, yes, that's what happens.
I had to do a routine to detect if it is an even or an odd to add one as the case basically thought always add 1 to the operation without distinction of odd or even ([%]> [+ 1]), then I found that not doing "dynamic loading" but rewriting the name in the poly ~ object which is included, that normalized the two results.
Now on another computer throws me correct results without all the baroque procedure.
I do not know that happened.
Thank you again.
And again sorry for my English.