I followed through everything you said, and I am having an issue. The game crashes when I open it. I read the FAQ, and I did set the renderer to the custom driver. But every time I open the game a black box appears, and my screen goes full screen black for a second. But after that second, I hear a loud beep, and it closes everything down. I really hope this can be easily fixed. Here's my APP.log report.
INFO: FF7/FF8 OpenGL driver version 0.7.11b
INFO: Auto-detected version: FF7 1.02 US English
INFO: NVIDIA Corporation GeForce GTX 680/PCIe/SSE2 4.3.0
INFO: OpenGL 2.0 support detected
INFO: Using PBO
INFO: Found swap_control extension
INFO: Max texture size: 16384x16384
INFO: Number of texture units: 4
INFO: Original resolution 640x480, window size 1920x1080, output resolution 1920x1080, internal resolution 3840x2160
INFO: FBO extension detected, using fast scaling/postprocessing path
INFO: Shader limits: varying 124, vert uniform 4096, frag uniform 2048
INFO: FFMpeg movie player plugin loaded
INFO: FFMpeg version SVN-r25886, Copyright (c) 2000-2010 Fabrice Bellard, et al.
INFO: FF7Music helper plugin loaded
INFO: Loading external library Multi.dll
LOCK UNLOCK TEST
MATRIX INITIALIZE
INITIALIZE DD/D3D END
ERROR: could not open file F:\SteamLibrary\steamapps\common\FINAL FANTASY VII\ff7input.cfg
initializing sound...
creating dsound primary buffer
reading audio file
loading static sounds
sound initialized
I have a Desktop, and here are my specs:
CPU: Intel I5 3570k (not overclocked)
GPU: Nvidia Geforce GTX 680 2GB
Ram: 4GB
Windows Version: 8