Hi Birdy, thanks for your reply and my system details are as follows:-

Windows XP home edition SP2
Windows firewall and the one that came with the router
504 mb of ram
120 gig hard drive
8meg broadband
Netgear DG834gt Router
Home
Limewire 4.12.11
Java 1.6.0-01
Sky broadband
Your test worked. Immediate pop up to verify this info
Not sharing
Been using Limewire for about a year and only had problems when I changed my ISP to SKY from Onetel
I did see a brick wall but I have removed it somehow by clicking on it, not seen it since