More On My Windows XP Problem

Thanks for all the help. I ended up using the chat room support from HP--and they suggested that I look around for the XP Media Center restore disks that I should have made when I first received the computer, rather than trying to unravel the security issues that were preventing XP Pro from sharing the workgroup MSHOME. Amazingly enough, I found the disk, restored XP Media Center--and everything is now working.