I tried all the suggestions that applied in the gnutella post. None worked. I tried the current and earlier versions of java, different users (I already was admin).
I'd install the prev version of Limewire, but dont know where to find one. Never had an issue with Limewire before, so whatever 4.8.1 did, they need to address it, or I've (and many others apparently) wasted $ upgrading the Pro. I might put XP upgrade back on just to see if the problem extends to XP as well. So far, LW support hasnt got back to me after thier first suggestion failed (updating my ATI drivers).