I am using a mac os 9.2 and tried for months and could not connect. Did all the reinstalls, left it on for hours. Finally gave up. Last week I upgraded to internet explorer 5.1.6 and decided to try limewire one more time. It immediately connected, stayed connected and have been able to download ever since. It sounds crazy, but it worked for me. For all of you who have tried everything else, it may be worth a try