Glass casts shadow

[RodolfoKE]

Hi, I am at start of modeling an old Skoda 105 car, and I have a problem with shadows in car behing glass, I have cheched "Affect shadows" on glass material but it still cast it and car interior is too dark as you can see here :

http://biasp.cz/ftp/bia/pub/panther/skoda/13.jpg

http://biasp.cz/ftp/bia/pub/panther/skoda/13-2.jpg

http://biasp.cz/ftp/bia/pub/panther/skoda/13-3.jpg

http://biasp.cz/ftp/bia/pub/panther/skoda/14-4.jpg

 

I am using Vray Sun and for GI Irradiance map with Light Cache

 

please help Sorry for my English