not connecting
 

i am new to lw but i downloaded the other day and used it just fine. today i tried to connect but it doesnt want to. ive re downloaded but everytime i double click on the program it does nothing. help

Do you mean that LW won't open?

What version of Java are you using? Try this one instead. Use the JRE offline installer & remove your current version of Java before you install this one.
Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 11

Reinstall LW & make sure to use the offline installer (not the recommended one).
Lime Wire » Download LimeWire

If that doesn't help, delete LW's preferences folder when LW's properly closed. See point 3 here & also point 2 if you've used older versions of LW in the past (there could be a folder in either location).
Fixes for LimeWire
This will kill all of your settings within options, you'll have to go back through afterwards & reset things. If you're not sure of your settings, go through LW's tools > options & write them all down, so that you can reset things later.

Otherwise, try the other fixes in that thread;)