iPod Classic 160Gb thin hangs on the Rockbox Logo page

[esde]

Hi,
I installed, the right way, Rockbox and when I had the database updated, every time I try to use it, it hangs on the Rockbox Logo page, and no way to get out of it except to power off. I tried to recover Apple software through iTunes, but no way to get it installed.
Any suggestion?
Thanks.