The initial design of the program I''m writing is that the user can use an add function that passes an array of vertices, and and array of ints which will be put into an index buffer. All the code works fine, until I notices these two lines in sample code: device.SetStreamSource(0, vb, 0); device.indeces=ib; Does this mean every time I paint the screen, I can only have one vertex buffer, and one index buffer? Or is there a way where I can create a new vertex and index buffer everytime my add function is called, and they''ll all be drawn when paint is called? Thanks. -Nick