Just saw that Steam was updating The Cave, no idea what was fixed, gave it a new try in a break, but it’s still the same:
a) The same glitches as before, a.o. those flickering dark lines/areas. *1
b) Sometimes characters get beamed/repositioned/respawn into the ground without that they can get out again, f.e. in the time traveller area. *1
c) Save only saves new regions instead of really saving where you ended.
d) Gfx settings don’t seem to be saved/connected to the interface. You need to setup everything each time you start, resolution is unknown. No matter if vsync is checked or not you still need to exit to the menu, disable vsync, return to the game, exit to the menu, enable vsync, return to the game, vsync is enabled.
e) And most important, switching characters or using their abilities can result into annoying reposition/death with reposition so that certain riddles are impossible to be solved (twins elevator) or a pain because you need to replace all characters according to where they might end up after getting repositioned after you switch a character (>= 2 switches with a separating element).
f) Switching between gamepad and keyboard/mouse doesn’t work properly, you first need to die with the appropriate input device which makes it a pain to switch between gamepad and keyboard/mouse where you can’t solve a riddle with the gamepad.
[Specs: Power Mac Pro, 4GB, i5, GT330M, Mac OS X 10.6.8, tattiebogle.net 0.11 driver, Xbox 360 controller. Works fine in many other games/apps.]