How to turn off surfaces in Creo Express View 2.0

Hello Everyone,

I don't know this is a right place to ask this question. But anyway here it goes.

I use Creo Express View 2.0 to open assembly model, but all the surfaces are turn on. This problem only happened with the models or assemblies that are created in creo 2.0 (the models or assemblies are created in WildFire 4.0 are fine.)

Any help will be greatly appreciated.

DV