TIG, thank you very much! I think I understood a few problems in my model. and I have tried reducing parameters of the "Capabilities" in the OpenGL everything seems a little better

Ok thanks you! I think graphic card is ok. I'm student and this is my project in college . And this is my file:
https://docs.google.com/open?id=0B2D4bIDgLYSjN0JzblhTVUlMV00

Thanks! I used the 9500GT graphics card and my drive version 285.62

My sketchup file error like this! (50 MB)? please help me!