So you have an installation & start up problem? It's not easy to read what your problem is considering you posted in the Connection Problem section.

When upgrading to Pro it's always a good idea to remove previous LW preferences folder: I am guessing you have Windows XP or earlier since you did NOT say. *sighs & yawns* so I'm guessing you are NOT using Mac or Linux.

1. Try deleting your LW Preferences folder whilst LW is closed; instructions here: Point #2 & 3 in Fixes for Limewire (sample image included at bottom of page.) or http://www.gnutellaforums.com/genera...der-vista.html

2. Remove all versions of Java & re-install only using the OFFLINE installer. Download Java software from Sun Microsystems

3. Go to Start menu, All programs -> LW > Uninstall.

4. Run this utility: Crap Cleaner

5. Reinstall LW using your Pro installer.

6. If problems opening them try options 5 & 6 here: Fixes for Limewire (click on blue link)

7. If you have XP or VISTA, then go to your control panels & disable your firewall. You should NOT have two software firewalls running as it results in less security & other problems. See suggestions here User Cant Connect - LimeWire

It would have been helpful to have these details as the forum rules require: System details - help us to help you (click on blue link)