Next I removed the LCD bezel, it became obvious that those were the screws that were loose. Unfortunately, the reason they were loose was that the plastic that holds them tight was broken! There are these little kind of nuts that are meant to sit inside the plastic and they keep the screws tight, but I guess over time, they've loosened and that's caused a lot of stress on those parts and now they've broken.
Anyone have any experience with this problem? I managed to put it back together and it actually seems tighter, but I don't know how long it will last since there are now a bunch of bits of broken plastic that have fallen out/been removed during the process. By the looks of things, the only way to fix it would be to replace the whole cover as that is where the plastic bits came from.
I was going to ring Asus, but I thought I'd ask here first. It's 4 years old so I expect I'll have to pay for repairs. Also, I can't seem to find the number now. Anyone got it? It doesn't seem to be on the website, but I did find this in the White Pages.
Ground Floor 60 Hugo Johnston Dve Penrose Auckland 09 571 2420