Hi folks,
Arx crashes quite a bit for me, with the 'memory error' dialog. This occurs when I 'bump' into creatures.
I have Vista and up-to-date drivers.
It seems like it might be related to the sneak skill check for pick pockets? Or maybe an audio 'bark' is called for the person to say something? My sneak skill is low, well below what is necessary to pick pockets.
It has occursed with trolls, goblins, Shany, a dog and almost everything except hostile creatures.
It doesn't seem like this is related to my configuration.
Any one have any ideas?

I'm glad it works for others too and not only for me. I have your same problem with the resolution but I noticed it only after your post. I have a 16:9 screen and with Win98 compatibility mode I can only use a max resolution of 1280x768, while my screen native resolution is 1366x768. Anyway it's not a big problem since I can use the 16:9 resolution of 1280x720 and don't have to see any deformed images.

Endless CTD with memory errors. :( and I was just getting into it too.
Tried everything I can think of and that's a lot. Unplayable.

Have you tried windows 98 compatibility mode, as mentioned earlier in this thread?

Also if you using nVidia graphic card like GeForce from driver series Forceware 93.17 - you could open up nVidia Panel (right-click on desktop) -> 3D Settings -> Use advanced 3D settings (take me to) -> TURN ON Application Extensions (or TURN OFF if they are TURNED ON). Its mainly use with older apllications (Arx Fatalis is such one), turning it on could help with crashing and graphic issues.

Dunno will it work with newer GeForce cards, haven't met them, also unknown to me how their control panels looks and works.

But it is worth a try.

This solution won't work - it's DirectX application, whereas Application Extensions for OpenGL. Sorry, folks.

I have made a save of a situtaion which ALWAYS causes a crash, and is very definitely a game bug, not anything related to the configuration:
When trying to talk to the goblin sitting in the tavern, the NPC chat interface appears, but no text appear where it would normaly start scrolling; then after a few seconds the screen goes black, without any way to abort thye game, activate Task Manager, or going back to the desktop; even Ctrl-Alt-Del has no effect, the only way out left is to shut down the computer (pressing the power button a few seconds still works).

Does Arx Liberataitus fix this issue, I would know cause I can't get it to work. I have the steam vershion and when I try to install the patch I get a black screen and it does nothing that the changelog says it does?