Environment Mapping Broken?

Hey all,

I'm trying to get environment mapping to work for my vehicle. I believe I've done all the steps correctly to get it working, but for some reason, when I view my vehicle in-game, the reflectivity is 100% -- i.e. you can't even see the vehicle skin.
From the exporter manual:

Quote:Set the reflection to max ; reflection is turned on
Reflectivity is based off of the alpha channel of texture
loaded into the environment map shader.

So if I understand this correctly, the alpha channel of the specified texture (could be any texture, right?) should work like a mask, with the reflection only showing on certain areas of the model. But no matter what I do with the alpha channel of the texture, the reflectivity is always 100% over 100% of the model.

Has anyone been able to get this working and if so, what is the trick to it?

Thanks in advance,
Kevin