How can I display four 3D model at the same time

Aug 19, 2011 at 8:44 AM

I want to imitate this DEMO

http://www.youtube.com/watch?v=lyQg-ePqK1k&feature=related

here is my project: http://bit.ly/nBXFN0

there is a problem ,3D object is unstable.

whether my code is not correct

please help me,thanks.