NGUI and Unity3d Version

[hong88]

Hi support,

I now using the unity3d version 4.0.1f2 and NGUI 2.5.0.c
but I just found that unity3d version 4.0.1f2  have a random crash on Acceleration so I decide to update the Unity3d.
With the existing code, the Unity3d 4.1.2f the drag & drop function does not work probably.

I wanna ask isn't possible that I the Latest version of unity3d with the current version of NGUI ? (I have edit some of the plugin coding)
Or I need to update both of them ?

[ArenMook]

You need to update your NGUI. Only the latest version is supported.

[hong88]

Last time I face the issue 1 on http://www.tasharen.com/forum/index.php?topic=3913, so I decide to stick back
to Unity3d version 4.0.1 .

Since I use some other plugin, I tried to do less change on my current project as much as possible.
Can I know how to fix the that issue under current version of NGUI 2.5.0.c ?

Edit:
To be clear on the issue I faced:
The drag & drop game object does not follow the mouse position during onDrag if the child Icon sprite is a sliced sprite or more than 2 sprite.

[ArenMook]

I can't support 2.5.0. It's very old. I also don't have Unity 4.0.1. I can only support the latest version.