NT Users Account Question

Alright guys here is what I got a problem with: my C: drive on one of my NT Terminal Servers is crucially low on disk space. When my users log into this server their profiles are loaded onto the C: drive. This works fine until all the space is used and then no one can log into the server. So my question is this: Can I change where my users' profiles are stored when they log into the server? For example, having the profile be loaded onto the F: drive instead of the C: drive. This process seems to be some sort of default setting. Thanks for your time!

 

This might help (good read anyway) :
http://www.ibilce.unesp.br/courseware/winnt/pt6_4.htm
Best