Slow internet
 

I can connect to limewire fine, although I rarely get a fast download (I have broadband).
The main problem is that when I have limewire loaded up, even if I'm not downloading or anyone is downloading from me, browsing the internet is waaaay slow.
Any ideas?

Try some of these. I know it doesn't seem to be related but try them anyway as it can help with the no-fast-dlds thing.
Also, when you see seemingly 0 activity from LW (no dlds/uploads) then click Stats and see the graphs about incoming and outgoing messages. There's probably still activity, because you recieve incoming messages from searches and stuff.