Did you configure LimeWire to use UPnP go to tools/options/advanced/firewall config and tick UPnP the icon should go away. Unless you have another firewall somewhere
You can do a speed test at the links below
http://www.speakeasy.net/speedtest/ U.S.
http://specials.zdnet.co.uk/misc/ban...eedtest50.html U.K.
http://specials.zdnet.co.uk/misc/ban...eedtest50.html Everywhere else