Ok so I've found the real solution (reproducible). I have two programs that interfere with the game somehow (have never had any problems with them and any other games the entire time I've had this computer): RocketDock (an application that creates a floating dock on the desktop that you can add prog...

I'm afraid I am completely out of ideas then :(. I only suggested memory because I had a really weird issue once with HL2 once that turned out to be a RAM problem, but it doesn't sound like that's happening with you if other (more intensive) games run fine. You might want to send an email to he LOG...

It might be worth to try LoG2 without this VAC driver. If it is the cause of the problem this could be an alternative. Oh I forgot about that actually, it's not the cause but I removed it anyway. Your Realtek driver is a bit dated. Better get a more current one from their download site . Updated. I...

What driver version are you using? Did you try rolling back to an older version? IMHO latest 344.x branch nVidia drivers just suxx. I installed version 340.52 instead (from version 344.65) and that seems to have worked. Though, it's still not a solution really, but it's a start. I imagine that, due...

To be absolutely sure it's not some inaccessible remnant setting of an older driver version i'd use a registry sweep with a tool like DDU followed by a clean re-install of the driver. When that's done do a DirectX re-install with the distribution from the _CommonRedist folder, a DirectX test with &...

I'm really just throwing random ideas at you now, because the error message implies that either it can't find some vertex data, or something in memory has got corrupted somehow. Anyway, some other random ideas... 1. If you have multiple HDDs in your machine, try installing on the other one? Same go...

ok no SLI then .. that'll be a tough one Is there any overclocking going on for CPU, GPU or RAM beyond manufacturer measures? Did you update your nVidia driver manually? If yes: did you select the install options "Custom" and "Re-Install"? -> possible driver conflict with old nV...

1. Reinstall the pre-requisites for the game. Go into <Program Files / Games Dir>/Steam/SteamApps/Common/Legend of Grimrock 2/_CommonRedist/. Here you can run the DXSetup for the specific version of Direct X that LOG uses. Equally, run the relevant setup for your machine for the vcredist package. 2...

I figured out some more information about the bug. Here are the steps I took: 1. I set the resolution to something much smaller (1024x768, the reason why is at step 4) and set the display mode to 0 (windowed mode) 2. I started the game and quickly moved the cursor outside where the window will appea...

Installed the game. That's about it.