Problem with integrated graphics

ok, me again :)

I found a way to make it work: after

tex=loadtexture("x.bmp", 2 or 512)
...brushtexture brush,tex

you have to "activate" the alpha channel of the texture
this way:

brushalpha brush,0.9999

weird...

Anyway, if you´re after maximum compatibilty, you maybe should use all alpha textures this way :/