! SOLUTION !

I reflashed again my N900. (after 3 hours from the last reflasing )

I think is all about some python package.

I just reflashed and i installed 1st Faster App. Manager (from the App Manager, without adding any repositories/catalogues).

I went to Faster App Manager option, and i unchecked "Fetch packages data".
From Faster i installed "rootsh" and after that "recaller". Why? I new that recaller is using 22 packages based on python. After that i just install QRadio.

And now Qradio is working !!!

I will install all my needed apps and i will come back again with a final result.

** After this i installed Linux Kernel (Pow.U. & Sett. Ov.Clock) and maxcpu. I tested again QRadion and it was broken again. I reboot my phone and the radio is functional again...WTF?!?!

**i installed all my needed apps. The radio is funcional.

Cheers!