Norton only offers NAV for OSX 10.4, they didn't bother to update their Utilities. No, it should not affect LW.

*** Remember, the latest LW versions require Java 1.5 which means it is no longer compatible with OSX 10.3. But you can get Pro versions or Basic versions that are compatible. See the Stickies at the top of this section to find out more.

The 3 of you with opening problems ... try Jum's nightly build CVS versions & see if that fixes your problem; LimeWire cvs builds (4.13.4jum490) & click on the nightly build link. But keep in mind his versions are betas & has some small differences to the normal LW.