problem with MirrorReflection

Hello

wiki Page: http://wiki.unity3d.com/index.php/MirrorReflection3

when i create plane from unity3D is work good…

but when i create plane in 3d Max and export to unity3d doesn’t work good.
[9053-3ds+max.jpg|9053]

there are reflection but i think the reflection uv not good maybe.

all this shaders have same problem with me>>>

MirrorReflection3
MirrorReflection2
MirrorReflection

thanks to everyone try to help me.
i find the solution by make the axis Y same as Unity3d vector to Up.