i have had the same problem with limewire and itunes using the same OS. however, i'm not convinced this is completely a limewire issue as itunes 4.2 is doing some pretty squirrelly sh*t. check out the forum for itunes on apple's site - itunes is doing some funky stuff all by itself. so... i'm just putting up with it, until itunes irons out it's issues. then i will worry if it persists. mine doesn't happen too often, so it's just a minor annoyance.