Ive got the same problem as JaccoG..

1. what OS version: XP Home Edition
2. What firewalls you have: Sygate Personal Firewall & Windows Firewall (not in use)
3. How much ram: 1024 mb ram
4. Hard Disk space available; 46 GB
5. Connection type: cable
6.Modem what brand name & model numbers: motorola sb42e
7.Router brand name & model number: Linksys Befsr41
8. Where are you trying to connect from: Student accomodation
9. What version,LimeWire & Java, are you using: LW:4.12.6 Java: 1.6.0_01
10. Who is your ISP provider (Internet Service Provider) ? @home (dutch provider)
11. Do this test click here: http://www3.limewire.com:6346/ should say 'Your test worked!. What happens ? Your test worked
12. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up: Yes, but other computers around here are still able to use LW the normal way (downloading with around 100 kb/s)
13. Is this your 1st try at LW, or is this a new problem with an experienced user.? new problem with experienced user
14. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface ? Yes
15. Have you given full permissions for LimeWire to pass through your Firewall ? Yes
16. XP users, Please state XP firewall on or off.? off
17. In Start & remove Programs, Is this update Installed, "Security Update for Windows XP (KB931261)": Yes
18. Are you using Manual Port faward in LimeWire OR UPnP ? UPnP

I used to download with 150-200 kb/s but now it's only 1 kb/s...no matter what song..can someone help me please?

Thanx a lot!