First , thanks for your quick reply

I dont quite understand all what yuve said , im french , and my english is a little rusty. I dont think i've explained properly:

I actually use the right click to to change the player.pan , so i need to send my player.pan value .

whever im in single or server client or client , its works exactly the same apart that on internet it lags. Because the camera.pan is dependant on the player.pan

I understand very well that the camera workd on client only. But when i right click its rotate the player.pan and the camera so that the camera always behind the player.
The funny thing is that doing the same by keybord works fine , but at soon as i use the rigth mouse click rotate the player , i keep having lags.

There must be something i havent understood yet.

What do you mean by smoothing it with a dummy actor?

Anyway , i've done alot of changes on the main script yesterday , and its works better, but i cant see how to optimize the right click.

Ill post the camera&movement code as soon as i get back home.

Orion,