I am having the same issue. I have windows XP. I do not know how much memory I have, I know it's alot, per my husband, connecting via DSL from my home. I just updated limewire to version 4.18.6 - what can I do to remove this brick wall? The only firewall type thing I have is Windows Live OneCare, never had any problems until I updated limewire. Thanks for the help!