Antialised textures

Hello,

I am creating a 3d world using textured quads.But the edges of the texture-quad are jagged(aliased).
How can i make them look smooth ?
I know about antialiasing and others (mipmapping already used) but i dont know how…

I appreciate any help…

The easy way is to use multi-sampled texture maps (glTexImage2DMultisample)