I can find the problem when I opened a vw2010 spotlight file to vw2011 spotlight application.
The problem is about 3D orientation for fixture.
I can rotate all fixtures of Libraries in VW2011.
But, all used symbol before VW2011 was not rotated.
macbookpro 2.66 i7
mac os x 10.65
8GB 1067 DDR3
Nvidia geforce gt 330m
VW2011