i noticed and seen threads of people that with the latest nvidia drivers, any ones newer then 301.42 suddenly a lot of darkplaces features seem to be broken....
mainly the rt lighting, and when loading up dp while having any driver newer then 301.42 dp will give a ton of error messages when starting up
easy work-around for it is just keep using 301.42 drivers, but could it perhaps be looked at what the problem is and if this can be fixed?
im no coder or such, but to me it seems from the error messages that some of the gl functions DP uses isnt supported in the newer driver-versions anymore.

i had also made a thread about it here, where i also attaced DP log
http://quakeone.com/forums/quake-hel...-304-79-a.html