I am having a similar issue, except my internet connection drops until I uninstall LW and restart computer. LW running fine on XP pc.

1. OS version? Vista
2. What firewalls you have? CA Security Center
3. How much ram? 1 gig
4. Hard Disk space available? 80gig
5. Connection type? (eg: dialup, broadband, cable, etc.) Cable 15meg d/l
6. Modem & router brand name & model numbers? Surfboard, sb5120, Linksys rtp 300
7. Where are you trying to connect from ?Home
8. What version of LimeWire (LW) & Java do you have? 4.14.8 java 1.6.0
9. Who is your ISP (Internet Service Provider)? Roadrunner
10. Do this simple test for us. Using your browser go here: http://www3.limewire.com:6346/ The page should say 'Your test worked!'. What happens when you go there? nothing, limewire killed my connection
11. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up. Via Router, no other issues
12. Is this a your 1st try at LW or is this a new problem with an experienced user. New problem, after LW update
13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? yes
http://www.gnutellaforums.com/attach...1&d=1158099342
14. For those using a modem/router, how is your modem/router set up...are you port forwarding or is UPnP enabled? upnp enabled
15. What security programs are you using (antivirus etc)? CA
16. What country are you living in? USA