unity 4.3+ Importing problem from 3dsmax

greetings friends i have a strange problem after upgrading to a version newer than 4.2 here is the problem in details:

Unity 4.2 or older:
1- create a 3d room in 3dsmax and place the objects in the room.
2- export it to FBX format.
3- import to unity.
4- each object is imported in its right coordinates.

Unity 4.3 or newer
1- create a 3d room in 3dsmax and place the objects in the room.
2- export it to FBX format.
3- import to unity.
4- each object is imported in (0,0,0) coordinates thats mean all objects is centered , which destroys the room.

when i first encountered this problem i thought that i did something wrong , like a pivot , but i even opened an older project created in unity 4.2 opened in 4.3+ , when i created it in 4.2 the importing is good , but now even with the same project but newer unity version i have this problem , each imported object is centered at (0,0,0) no matter what export settings i did , so i come to conclusion that unity have something different when importing object files.

so is there any settings to change this behavior.

thanks for help

try to group the objects in 3d max before export. group will act as one mesh but not effect the textures and materials.