Yesterday I had to remove battery from N900, when I put it back it booted up after third time - so I was happy enough that it escaped from boot loop. After that (without removing battery - right one was already inside) I switched device off, and tried to tun it on. The same stoty few boot loops and finally booted ok. I'm not even writing about ringtones :-D cause that was with no changes, a mess. So having now only one device with all docs and stuff I need, as a N900 in working condition, I decidet to roll back to CSSU-T 7.2 which was the las one compleatly stable for me. So after doing so, with no problems what so ever, helped with booting. It's booting like it supposed to. But when (after rolling back to 7.2) I sended testing text message - just to make sure, the ring tone was wtill f up. So 1st txt was with default Message1 tone, 2nd without sound, 3rd with user choosen tone. So I edited the 99.custom.ini file in profiled, choosing the right tones for each event (of course moving the copy of both files before messing around in safe place). Now it's ringing like it should, right tones for right event. So my point is, the ringtone bug exists, and for sure it came to me after CSSU-T8, but rolling back to T7.2 did not helped at all. But T8.x is still in very early testing stage - and after boot loop got me too after "boot loop fix" update, I decided to go back to T7.2 Good bless, champs. Keep up the good work with CSSU's it is amazing to see new stuff coming into N900. Edit: I was testing again with ringtones (call and text) after reboot. So editing the 99.custom.ini file which is located in /etc/profiled/99.custom.ini helped me to solve the ringtone mess.