How do you change the resolution in Q2DOS using the software renderer?

In the video menu, I select 1024x768 and hit enter. I hear a sound. But the screen doesn't change and if I exit and come back into Q2DOS, the res is back at 320x200.

I tried changing the resolution in the console, but the console says gl_mode, gl_customwidth, and gl_customheight are unknown commands.

I'm using Q2DOS_EXE_STABLE from 9-30-2015 on an asrock 775i65G, Celeron 450 (2.2 GHz), Geforce FX5700 with fastvid.exe 111 128 e0000000, and Vortex2 in MS-DOS 7.

EDIT: Nevermind, I fixed it. Turns out at the default 320x200, the apply button at the bottom is hidden off the screen. I was able to set the resolution to 1024x768 now.