Hi Mr. Abantecart, nice to meet you

No, i don't have any custom .htaccess rewrite rule in my site.
And... i made it work just a few minutes ago.
When I clicked the links i saw an "ugly" page, and when i wrote the destination page address in the address bar i saw it fine.
So I realized that the problem was the link. What I did was to delete the LINK data at Design==>Menu - Edit Menu, save it, and then rewrite the link data and save it again. And.. that was enough

I must say that there was no error in the data showed in the link entrance before i delete-rewrite it, but it's now working perfect.
Could it be a bug?
Only the time will say it... or you have any idea?

Thank you so much to all of you.