1. OS version? Windows XP Pro
2. What firewalls you have? Nvidia Firewall
3. How much ram? 1 Gig
4. Hard Disk space available? 102 GB
5. Connection type? Cable
6. Modem & router brand name & model numbers? Modem: Scientific Atlanta - by Comcast. Router: Linksys, don't know model numbers.
7. Where are you trying to connect from? Home
8. What version of Limewire (LW) & Java do you have? LW Version: 4.3.97 Java Version: Version 5.0 Update 6

And I'm not using it on a mainframe. I'm on a router with 2 computers connected to it, just me and my roomate at home, on a cable modem.