I don't see why he'd need to, he using the same source into amps with the same gain, the amps had different gain level's I'd agree he'd have to measure to properly adjust the volume control but with the same gain seems kinda pointless to measure.
ah i don't use resolutions anywhere near that low, again though is it really that hard to click on the last post button and then scroll up to the top of the page?
nope the education discount is probably the best option, the next best is probably buying an OEM version they are typically a little less than the retail version.
yeah opera mini and opera mobile are very different, opera mobile is an actual full browser where as opera mini is actually doing the rendering of the page in question on opera's servers and displaying the results.
yeah just get him a cheap pair of headphones to use.
otherwise why not just change the password on the router so he can't go in and undo any blocking you turn on?