i am trying to install debian and i want to install mostly from http instead of cdrom. i installed the base system and when i edit the sources.list i cant seem to get it right. i uncommented the lines with HTTP in them and changed anything that said "stable" to "testing" but it tells me there is an error on line 4 when i try to save it. i dont see an error on line 4 so im baffled. i dont see anything specific on the debian instructions to show you how to edit that file. any ideas of what it should look like?