The problem with the guy with the error message :
(Slayer) Exception Address 4b7fe9
[no game crash info]
IMAGE HELP STACK
TArhive:
perator=+B0AD9
MAP FILE STALKWALK
That happens because your video card is unable to load the game graphics for some reason. Does it meet the minimum requirements for the game?
As for the guy with the loading problem:
The game loading time can take up to 15 minutes. The same happened to me. At first I thought the game stopped responding but later I found out I have to wait up to 10-15 minutes for it to start. Once a level is loaded it will take about a minute or two to load the SAME level in case you need to replay it because of a uncovered item, etc.
PS. BOTH PROBLEMS FROM BOTH GUYS CAN HAPPEN WEATHER THE ORIGINAL GAME IS INSERTED OR NOT DEPENDING THE PC USED.