   Why can't I lock this texture?
  Every frame, I lock a texture, discarding its contents and generating a different texture.  However, after the first frame of locking and generating the texture, when I go to lock it again, directX throws a fit.  P.S. Code is in C#/SlimDX(dx wrapper) but should look very similar to how it looks in directX.  What's wrong here?Texture Creation:this.frame = new Texture(game.DeviceManager.Device,    size.Width,    size.Height,    1,    Usage.Dynamic,    Format.A8R8G8B8,    Pool.Default    );Texture Updating:private void generateFrame()   {  byte[] buffer = new byte[size.Width * size.Height * 4];  DataRectangle data = this.frame.LockRectangle(0, LockFlags.Discard);  buffer = PerlinNoise3D.CreateSurfaceA8R8G8B8(this.size.Width,  this.size.Height,  z );  data.Data.Write(buffer, 0, buffer.Length);  z++;   }
  You should call the UnlockRectangle method after you are finished with the locked rectangle!   ;  Wow.... I can't believe I forgot about that X/ thanks haha   