Hello. After I did the security upgrade from Microsoft in the begining of Dec 2006 (Security Patch from Nov-Dec, 2006 excep IE7), it first diabled all of network connections (and parallel tools). By disabling and enabling network adopter in configuration menu and re-installing parallel toold, I was able to get my internet connection back. However, my personal shared folder now requesting me to type password in which I have no idea for. Everything else seems to be working including file sharing with other computer. So if I need to transfer files, I'm copying the files from Mac OS to network drive to Parallels. I've tried to disable PSF and eneble back on, and re-installed Paralles (but kept the disk image). Also uninstall Parallels tools and re-install. I have MacBookPro 1.8Ghz, Mac OSX 10.4.8, Parallels Build 1970, and Running WinSP2. Do you guys have any idea? This is my last resort before I clean install my XP. Thanks