Hi, I have a weird problem with Windows7 under "Local Network Properties". I can't change IP adress because when I choose TCP/IPV4 the "Properties" button is unaccessible. I tried disabling IPV6 and reboot but nothing changed. Windows Version is : Version 6.1.7600 NumÃƒÂ©ro 7600 The PC is a VAIO notebook with an Intel PRO/100 network integrated lan device. Thanks in advance for any help you can provide.