loopback connection help me please

You need to provide the full and exact text of the error message as well as give us more information on things like which model computer you have, which version of Windows you are running, how you connect to the internet, and what you mean by restoring your system. 

Steve

i have and dell demindion B118 and the message is saying that the program cant be intilialize and start.it also says that this can be due to and firewall program blocking lime wires access internet or and loopback connection on local machine, please allowlime wire to acess to internet and restart lime wire . but i dont know what any of this is

I assume that you mean that you have a B110 (since there is no such model as the B118).  You need to supply the other requested information - how do you connect to the internet (cable/dsl/dialup)?  If by cable or dsl, do you connect through a router?  Can you connect to the internet at any site or is it just Limwire?  What do you mean by restoring your system? Which firewall programs do you have running your system? 

Steve

I can't help you with anything AOL, because I wouldn't allow their software anywhere within 10 miles of my computers.  You say you have McAfee.  Which McAfee.  Is it the security center, antivirus, firewall, etc.?  If you have the firewall running, you will need to make sure the the McAfee firewall is not set to block the Limewire site.   You can also turn off the McAfee firewall temporarily, but make sure you enable the Windows firewall, and that will help you determine if it is the McAfee firewall that is blocking the connection.    Sorry I can't be of more help with Limewire, but my kids had it on the computers for a while it was a constant source of spyware and other internet parasites that made the computers unusable.  So, I don't allow that stuff to come within 10 miles of my computers either.  I understand that Limewire has cleaned up their act somewhat, but I still don't trust that site.

Steve