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			thanks a lot, and when I use the viz2.0 at home, it shows the error message as following: 
Warning: detected OpenGL error 'invalid enumerant' after applying GLMode 32826 
Warning: detected OpenGL error 'invalid enumerant' after applying GLMode 32826 
Warning: detected OpenGL error 'invalid enumerant' after applying GLMode 32826 
Warning: detected OpenGL error 'invalid enumerant' after applying GLMode 32826 
Warning: detected OpenGL error 'invalid enumerant' after applying GLMode 32826 
 
when I run old verson, it's ok.
		 
		
		
		
		
		
		
		
		
	
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