Desktop computer switching back & forth between two different ID's

[alduins khajiit]

I am having a problem with my TeamViewer on a Windows XP computer that it keeps switching back & forth from two different "your ID's"!!! it switches between the two every time a computer restart. I keep deleting the computer and readding the new ID every time because there is NO way to edit the ID in "computers & contacts"!!! until I realized that it is going back & forth between the two ID's!!! why is this happening & how do I fix??? also that computer does NOT automatically log my in anymore!!!

[matt]

Unless this is a Virtual computer, or server remote desktops, I didn't think that this was possible