Hi fcrochik Just wanted to say 'well done' with this. It has solved 3 issues for me: 1) I can now group my contacts. 2) I can assign different ringtones to my contacts. Its not important about only been able to use WAV music files. I can use Nero on my PC to convert from MP3. Would be nice if there was an app for the N900 to convert files? 3) Its also stopped the annoying beeping while using a bluetooth headset. Brilliant!! Cheers Zan