Quote: "your answer is seriously to start over?
This was a fully flshed out level with nearly 20 minutes of gameplay and dialog."
In 4 years all the scripts, terrain, AI, sound handlers, asset paths and GFX have changed,
In fact you probably made in in the DX9 version. You could try rolling back. The current version is DX11
Go to your steam Library
Right click on GameGuru
Select Properties
then click the " Beta " Tab ( no key required for this )
From the drop down menu select " public-release-last-dx9 "
Game Guru will then auto update reinstalling the dx9 version
See if it works in the older version.
The only person ever to get all his work done by "Friday" was Robinson Crusoe..