I'm sorry to hear this method isn't working for people. One thing: are you positive you 1) completely closed limewire (this means making sure that the limewire icon is not residing in your system tray, dock, etc.) and then 2) deleted the appropriate directory and then 3) restarted LimeWire?

I should have made step 1 more clear - you need to make sure LimeWire is totally shutdown before attempting this fix.

Thanks!
Susheel