boeing 737 wilco publishing FSX - I can see white screen only

hi all,I have a little problem with my addon. :/ When I installed this addon, it is in my flight simulator but I can't see it. In the main menu at opinion I can see white screen only and when I run the game all screen is white. When I choose 2-D cocpit I can see it, but only front cockpit, when I want to rotate 90 degrees for example, the screen is white again. the same addon but for FS 2004 works for me without problems. Where may be a problem? :/ Thank you so much!Peter