Very frustrated, when it is needed to have opened an inventory and all instruments to use, everything is blacked out.Even in a very needed final action -Gabe needed to approach to Malia/Tetelo with medallion, but all control blacked out and never open and both -gabriel and Mosely stand motionless and killed.I was using DOS in episode with getting Dr John'key and it worked, but not now. Can you help me ,please, may be I used Dos not right here, is there some way make Gabe and Mosely to move and to get some control to be open for actions?
Thank you , please HELP !

This sounds like a technical problem rather than a gameplay problem, but the moderators can move this post back to Adventure Game Hints and Help if it is not.

Have you looked at this page here? There is a list of problems with running the game on newer computers as well as suggested patches/fixes.

Please let us know. Maybe someone else will also be able to help.

Are you using DOSBox?
If you're using a modern computer, you pretty much have to use DOSBox with DOS games -- or an installer that installs the game with DOSBox, which is what GOG offers.

If you already own the original boxed game, there is a DOSBox installer here
http://sierrahelp.com/Files/NewInstallers/GK1ForDOSBox.zip

That's from this webpage
http://sierrahelp.com/Patches-Updates/NewSierraInstallers.html

Thank you very much for you answer and concern ! I finally got the way to end this game,I just did a few times savings and used more clicks to Help button. I know that sounds funny, but it helped !
Again, thanks a lot, and I wish you a Merry Christmas !
Sincerely, Joky397