Transparency problem

Hello guys, I get a problem about transparency.
There is a plane & box, I want make a transparent plane before a box. I set the plane a texture & the box texture respective, the box uses the texture name NMBumpsOut.png, I can see skybox through the plane but the box. Later, I copy the texture NMBumpsOut.png to NMBumpsOut_clone.png and then set the new texture file to the box, ok, I can see the box throgh the plan. I don't know why, I try to use other picture, the result is the same. I think it maybe a bug in oFusion. I have installed hot-fix in 3DSMax 8.0. Who can help me ?

Im not sure what is your question, but it seems that when you set the plane transparent, the box is not visible (just the skybox)

If that is the case, you need to disable z-buffer write

thanks, I disable the plane Depth write, then I see the box. but I don't know that If I do not disable z-buffer write I can see the box occasionally.

when I change the texture name of the plane, like this:
old name: NMBumpsOut.png
new name: NMBumpsOut_clone.png

after do this, I can see the box after the plane. It is make me puzzle.

The name of the texture should not make any difference

If you make a test case where this can be reproduced, i will take a look at it