1. Reinstall Java. Use the JRE offline installer here. Remove your current Java version before you install the new one.
http://java.sun.com/javase/downloads/index_jdk5.jsp

2. Delete LW's preferences folder when LW is properly closed. See points 2 & 3 below. If you've only used very recent versions of LW then the folder will be in point 3's location. If you've used much older versions in the past, there could be a folder in both locations.
Fixes for LimeWire
Deleting this folder will kill all of your settings within options...you'll have to go back thru & reset your options afterwards.

3. Now reinstall LW & make sure to use the offline installer (not the recommended one).
http://www.limewire.com/english/content/download.shtml

hi, birdy
i have the same prob ive tried everything you suggested and still LW cant get past the startup splash screen any more suggestions,
its driving me mad

sorry forgot to mention that LW was working fine last week

Have you installed/updated any security programs since LW was working? Make sure LW's on the list of exceptions/allowed for any antispyware programs etc

You could also try changing compatibility. Right click on your LW icon > properties > compatibility. Change to Windows 2000 or NT...see if that helps.

cheers birdy
changed the compatability to win 98/ me and is working fine
thanks again
f.c