problem in viz2.0

[sled]

hi,
I tried your viz2.0 and have lots of fun, especially when I find that you add the collision event and dynamically loading 3d object in callback function, that's great

and when I add a vrml 2.0 file, there 's a small problem, for example, the attached file "trafficlight.wrl", it looks properly in your old version, but in your new version, it does not.