When i start playing " send in the sharks" mission I get this error during the loading screen. I found solution how to do this on steam but don't know how to disable this mip filter on gog. Someone help

Found something here:
http://www.carmageddon.com/forum/topic/13962

Really don't know what mip is but i will just copy paste it.
DIT: Got it. Now, I can't give you mine because it has a lot of graphic options specific to my machine and whatnot, and I'm sure it'd explode if I gave you my config file. So here's what you need to do:
Go to the game's folder, and open TDR2000.gfx with a text editor. Go to line 74, which is roughly halfway through, and you'll see the line "2,2,2". The final "2" is the mip filter. Change that 2 to a 0 and you're all set.
Oh, and if you need pixel fog disabled (which is the only fog-related option I could find), go to line 72 and you'll see "2d,d5". Change that "2d" to a "9", and there you go.

Edit: had the same problem in the exact mission, used the above solution.

Actually i just checked that and the mip filter is greyed out but says linear. Can't really change it in the advanced settings so the solution i posted also seems to work.

Thanks alot for your help i really appreciate. It's working :)