FF7/Technical/Graphic problems
Symptoms
Messed up graphics, black boxes are common.
Causes
Presumeably an issue with the Graphics cards or codecs.
Solution
You can (1.) use the [1.02 Patch] with NVIDIA mode on and disable 8-bit Paletted Textures, or (2.) turn on FSAA.
FF7 will crash if you are using an nVidia graphics card, the 1.02 patch with NVIDIA mode on, and drivers that support 8-bit Paletted Textures. To fix this, download and install RivaTuner. Open the program, click the little Triangle button in the "Driver Settings" section, and then select "DirectDraw and Direct3D Settings." Go to the Textures tab and uncheck "Enable 8-bit Palettized Textures." After restarting your computer, you should be able to run FF7 with the 1.02 patch installed and NVIDIA/TNT mode enabled, and have regular-looking text. You may need to turn 8-bit palettized textures back on if you see graphics corruption in other games.