Inactive entities/particles/objects still showing & sound problem

[Spazatron]

I have three problems:

1. I have set a dust particle and a box entity as inactive in the Level Editor, but when I play the map, they're both showing.

2. I have a clock sound playing at a clock, and I have the settings in the sound's .snt file set to 3D and I've set my min distance to 0.5 and max distance to 19, but the sound doesn't get quieter as I move away from the clock, and even outside of the max distance I can hear the clock as if it's playing directly in front of me.

3. I have some oil and tinderboxes set to "StaticPhysics" but I can still pick them up... is this the right way to stop the player picking them up?