I have noticed a problem that shows when I use my notebook (ATI X700 256MB). The same problem didn't appear when I tried it on a GeForce 6600.

My models windows are supposed to be transparent. I don't use any textures, but define the materials in MED and I have set the alpha to 75. Now on the ATI-System everything behind the window is beeing shown as if there was no window. The actual window color only appears if you look trough the one window an then trough another one. The normals aren't flipped, I've checked that...

The GeForce on the other hand shows a nice colored interior and just enough transparency.
Does anyone know how that happens and if there is a solution to this?

Thx for your help.