9.04 ==> 9.10??

[Beartooth]

	A friend just getting into linux has been having trouble on one 
machine with Ubuntu 9, but finally got 9.04 installed and working. Now he 
asks :

> I have to wonder if I upgrade from there to 910, will it keep
> the old driver and just add new ones, or will the upgrade
> completely overwrite what works.

	(I run Fedora, and have no clue.) Can anyone tell him?
-- 
Beartooth Staffwright, Neo-Redneck Not Quite Clueless Power User
I have precious (very precious!) little idea where up is.