Whenever I use my Limewire Pro 4.12.3 it alters settings in my Yahoo Messenger,which prevents me from opening the following ....contact profiles....email....all items in the "drop down box under Help".In summary anything that has to go to the Yahoo Server as much as I can determine.I have checked directions from Yahoo to assure that "internet explorer" is set tobe my "default browser" for the various URL protocols,and that is all in order.I would appreciate any help in solving this problem.My OS Vista Premium. IE 7. Firewall included with Vista..DSL high speed provided by MTS 2GB RAM. 320GB hard drive. AMD Athlon 64x2 4000+ processor.AVG AV which is not activated when using Limewire.