How many other machines has your code been tested on?
Have you tested the code with the desktop in both 16 and 32 bit modes (and possibly 24 depending on OS) on an ATI card?
What textureflags is the texture being created with?
Have you tested the code with the desktop in both 16 and 32 bit modes (and possibly 24 depending on OS) on an ATI card?
What textureflags is the texture being created with?