Home Network :: Windows 7 Can't See XP Computer

I finally was able to connect two of my computers up to share files. The only problem is My Win7 computer can't see the xp computer although the Xp can see the Seven. When I first set it up Explorer showed the name of the Xp but when I clicked on it the dialog said it couldn't find the computer. The Xp name was in all caps and when I checked on the Xp the name was all lower case so I tried to change the name. When I tried, the OK button was grayed out so I went in to So I clicked on More and was able (I thought) to change the name there. I had to reboot and when I did the computer had just appended the DNS entry I had to give to the original lowercase name.

I was finally able to rename the XP computer! I changed the name to NETBOOK all caps like I had originally thought it was. BUT it makes no difference to the Win7 machine it still can't see the XP machine. I did a refresh and the Xp's name NETBOOK showed up But I am still back where I started from because when I click on it a dialog box just says that it can't access ||NETBOOK.