With BFC enabled, I get the same effect in LDView that you see in LDCad. Here are my steps:
Orion: LDView does indeed disable BFC for the transparent portions of the part, but not for the opaque portions of the part.
	
	
	
	
- Disable "Process LDConfig.ldr" in LDView's preferences so that the IR glass isn't so dark.
 - Set LDView's background color to bright green.
 - Enable BFC (with red/green/blue faces disabled).
 - Load 58123.dat all by itself.
 
Orion: LDView does indeed disable BFC for the transparent portions of the part, but not for the opaque portions of the part.
      
      
 