Limewire connection issues

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1. OS version? Windows XP
2. What firewalls you have? Windows and NOD32 anti-virus
3. How much ram? 1Gb
4. Hard Disk space available? 220Gb
5. Connection type? (eg: dialup, broadband, cable, etc.) Satellite Broadband
6. Modem & router brand name & model numbers? SkyEdge Modem, Realtek RTL8139 Family PCI Ethernet
7. Where are you trying to connect from (home, school, work, etc.)? Home
8. What version of LimeWire (LW) & Java do you have? (Go to LW's menu Help>About LW...) Will show both LW & Java version. LW4.12.11 Java 1.5.0_12
9. Who is your ISP provider (Internet Service Provider)? Bordernet (Australia)
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? Your Test Worked
11. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up. No
12. Is this a your 1st try at LW or is this a new problem with an experienced user. LWhad been working fine, about 1 month ago it stopped connecting with a brick wall and only 1 bar
13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? Yes

I have tried Mickjapa's suggestion - unistalling using search to find all the extra bits, removing them, removing Java and then reinstalling (offline)Java and reinstalling LW, with numerous reboots in between, all to no avail. It is driving me batty! If anyone can help I would be most grateful.

Thanks