Hi, I damaged my N97 mini (which I loved), so I took the opportunity to upgrade to a N900. So far it has caused me nothing but difficulty wont sync properly with PC Suite or OVI music. I imported my music files - using the mass storage option. I have managed to change the phones ringtone to one of my uploaded MP3 files, but Im unable to change the SMS alert to one of my uploaded MP3 tracks. When I try to change the tone, the warning appears " Unsupported file format or corrupted file". Can anyone help with this problem?