Check out the file "/etc/apt/sources.list". That said however, since Potato is glbc2.1 vs. 2.0 for slink it's pretty much an all or nothing upgrade, ie. you'll be downloading pretty much everything. If you still want to move to Potato then consider "apt-get dist upgrade" and do a check of the list archives to see what problems others have had when upgrading. Updated X debs are available for slink, have a look at www.netgod.net. -- Ray