Ableton Forum

To some of those cool cats that are into helping peeps with Ableton education and tutoring (you know who you are - muchos respect), this might be of interest. It's a piece of software that lets you look at other peoples machines, or lets them look at yours, over a network or over the internet.
Good for live demonstrations and help with troubleshooting.
Cross platform aswell.
it's free and looks well tested:
http://www.realvnc.com/how.html