I agree that sending a new laptop to repairs/changing should be the last resort. So, what about the video properties? maybe there’s some sort of way to force the tv detection - like GeForce cards have?
and what about the dropdown box in the Settings tab. maybe you need to adjust the resolution a bit more. and did you have any special laptop software coming along (Like Acers Empowering technology) from which you can control things? Sometimes this software takes over the system and only from it you can change things. Usually there’s a seperate place for Presentation settings or smthng. and does the manual say anything about s-video?