Hi clenford,
Are you using McAfee?
Lots of people have had trouble with McAfee & have uninstalled it (or parts of it).
http://www.gnutellaforums.com/showthread.php?t=66843

But this poster found a solution & is now able to run LW with McAfee
A fix for Visat/Limewire

What Java version are you using? You'll need Java 1.6. Use the JRE offline installer & remove your current version of Java before you install the new one
http://java.sun.com/javase/downloads/index.jsp

If you still have trouble, let us know your details
System details - help us to help you