Component in SubAssy - Losing Appearance

I have a component in an assembly that just won't behave. Why does this part not stay the color I assign? The other parts in the assemblies remain the correct color.

I can change the part to a pale translucent yellow. Then I save. (Snip01). If I reopen the assembly, or switch to Animation1, it reverts to opaque. Do I have some default setting turned on? This is very frustrating.

I have attached the assembly too if you want to play with it.

This is in SW 2011 Professional.

Thank you,

ß!

SolidworksAssemblies