hmm
go to Start > Run...
Services.msc
In the Right window, Sort by Name, and for every service that starts with "Remote", right click, go to Properties, and set the Startup Type to Automatic. click OK, and restart your computer. make sure the other person does the same thing. I think the only one you really need to set to automatic is Remote Desktop Help Session Manager, but I'm not sure. There may be other services that don't start with Remote that you need enabled. Look through the list for candidates. Make sure you set the same services to automatic on the other person's system, too.