In "Manage POIs" - "Warn when near POI" I set a warning sound for a POI group (e.g. Speed Cameras downloaded from here). Everything works nicely.
The problem is that when I exit TomTom, the sounds always reset back to Bell 1, so next time I run TomTom I still get a warning, but it's always Bell 1.
I'm only using the default sounds (no ogg files). It doesn't matter which sound I choose, it always resets back to Bell 1.