Okay, for all of you who has had major problems with the connection.. I found the sollution!!!
okay, go into your map with the limewire-files (often C:/Program Files/LimeWire)
and then you go to the map named "lib", and delete the file "SystemUtillities.dll"
then the program will set itself to default settings, and might connect again
Anyways; this helped me, so I hope it will work for you too..
If something happends, leave a message here..