This was a recent question:
Q:When one of my clients is launching an InnerMeeting from their email invitation, is there a way they can make the shared screen expand to cover their entire computer screen? Currently the limited view cuts off part of my PowerPoint slides.
A:If they hit the the small to large boxes at the top left of their guest control panel. It will minimize this box and give them more real estate to view with.
Also, in powerpoint you should be able to change the presented resolution under the slideshow tab.. I usually select 800×600 as it
as it fits in most peoples screens.