Remote Desktop with windows xp.

I have a computer at work with windows xp on it, it is also connected to a domain. Now the porblem that i am having is, whenever I connect into my work computer from home, I can connect the first time, but when I log out, my work computer will log out after a few minutes. then someone at the office has to log into my computer, and then i can log into my system via remote desktop. not sure why this is doing this. looking for some answers.

Chad

 

Can you lock the computer when you leave? "Window key + L" Then it will not log off, it will just be locked. Although I don't understand why you have to have someone log onto it to let you log onto it remotely.

 

I tried that, and it just logs out my machine that I am in front of.