Myst IV - Revolution
They sell a 10th anniversary set of the first 3, Myst, Riven and Exile for ~30..
Uh, that's Revelation...
They haven't by chance updated them at all have they? because I know the earlier ones when you change the resolution the viewable screen actually becomes much smaller with a thick black border all the way around. This is what stopped me from playing them on the PC. Back then I had a CRT for a monitor and a 9600pro video card. Not tried since with my latest setup although I don't see why it would be any different.
Anyway just curious.