Create new lines so html validates properly?

When I validate the html on my site using the w3c validator validator.w3.org/ the menu comes out as one big glob of text on line 141 with 43 errors.

validator.w3.org/check?uri=http%3A%2F%2F...ctype=Inline&group=0

Cleaning it up with html tidy (on the validator page) it seems to just add line breaks and that removes the errors.

I understand that perfect html is not necessary and that perhaps the validator is nitpicking, but is there a way to insert line breaks so the code passes that validator?

Thanks for any advice.

Hi
I will check this point
Ced