Quake and abuse problems

[KennyR]

Sounds to me like you may have a problem in your pak file(s), not the executable itself.

If you have "optimised" the pak using pakman or similar tool, or edited it in any way, try deleting it and replace it with the clean file from the game CD. This might make a difference.

[KennyR]

You didn't say if you restored the original pak files or not. I optimized a pak file using pakman and found it worked on every version of quake except GLQuake. There it just crashed.