So whats happening when a single user(IP address)suddenly floods me with requests for all songs of a cd? My setting is for 1 upload per user. I can watch several requests per second from 1 address scroll up the upload screen. Sounds like some sort of file browsing program...

no it just means that someone has queued up requests for all your songs... Gnutella's protocol doesn't allow for remote queuing (well it may allow for it but non of the clients have and sort of remote queuing) So as a result the only way to d/l a lot of files over time is to repeatedly send the requests. All of the clients do it, after X seconds a new request to d/l is sent to the other client. Really they other person isn't trying to hammer your system they are just attempting a setup and forget thing for themselves. So this way they can put all of the files into a queue and then walk away and hopefully they all d/l. I personally watch my d/l's and make sure that if I'm hammering one person alot I lower the number of files I can d/l and make it so it queue's locally, but there are time when if all I want is one file I'll let Limewire go crazy on retries. Don't worry about it, it's not going to kill your bandwidth or anything... it just fills that list up really quickly...

I have a different explanation - limewire has a "browse host" option in the search results window, so I suspect the user is searching for an artist / title and then browsing your host to see all that you have. Then, they queue up the downloads against your machine.

I see the same thing, and my approach is to limit the number of downloads per user to 1.