W2K-Unwanted multiple profiles

(W2K PC on a WNT network) Everything works fine initially however after several reboots and logins to the domain, both as the user and the administrator, a new profile is created for each account. Even though the original profiles still exist theyare no longer recognized by the computer. I also have a very strange folder showing up in each profile with numbers for the name. I have already completed a reformat of the HD and new install of OS with no luck.