Jim - here's another scenario to answer your question. I work on Unknowns. If I find a source, or the LNAB, I place a comment on the profile. If they fix it, great, we're done. But many of these PM's are either inactive or just don't respond. In that case, I wait a few days, ask for TL status and send a PM...If there is still no response after 7 days, I can ask that the profile be orphaned so that I can update it. This is WT policy, and you will see it detailed on our Unknowns process page.