I bow to your knowledge here - I'm not that savvy about this stuff. Come to think of it, I've seen PP presentations and don't they project directly from the computer?
Exactly. The connection between the computer and the projection systems does not even have the ability to transfer storable data - it's just voltages that the projector uses to display the image - the only way it would be storable would be to convert it from R-G-B video to standard video that could be recorded on a VCR - but someone at the hotel doing that would be highly unlikely.