For OSX preferences are found here: /Users/your_username/Library/Preferences/LimeWire
1. Can you tell us about your setup.
2. What brand name & model number(s) of modem/router do you have?
3. Where are you connecting from (home, school, work, etc.)?
4. Do you have any firewalls?
Firewalls & many high speed modems which have a type of internal firewall might be blocking LW from having 'full' access.
These questions apply to both limewirerookie & astrodog !!!