clbsviaol: I am playing Stonekeep on a somewhat new Toshiba laptop (Core 2 Duo 2.0 Ghz CPU, 4GBytes of SDRAM, Vista 64Bit). I have been lucky so far in 3 completed games, that I have not encountered any failure of moving enemies in any scenario. You may have encountered a system problem with your own set-up, though I do not pre-judge you or your hardware. I read in another help forum that Shadowkeep may be sensitive to excessive hard-drive fragmentation. I respectfully suggest you de-fragment your HD using the built-in Windows de-frag utility. Norton 360 also has a "de-frag" utility they call "disk optimization," but the Windows utlity, although slower, was designed by the operating system designers at Microsoft and I feel they know their business fairly well.
I am under the impression that the glitch I was talking about in my previous post isn't caused by Windows. I've experienced it regardless, even when running Stonekeep under a new installation of Windows 95 on an old computer. The shadow skulls south of the mysterious symbol have never appeared properly as far as I remember. They're there and are moving, but cannot be seen and won't attack the player. (I had stated that they weren't already moving in my previous post, but I found out that I was wrong about that. When entering the Palace of Shadows, they're already moving.) I can only destroy them if I shoot black slayer arrows in the middle of a turn away from one of the corridors they inhabit. I also don't think a patch exists that can fix this bug. The issue with the door before the gate at the center of the "Gate of the Ancients" level also can't be fixed, although for some reason if a player returns there after entering the "Palace of Shadows", the door will be locked. Unless Interplay can release the source code and allow somebody with the right skills to patch these issues, they likely will remain as they are.