No no horizontal.ini or vertical.ini or not at least in same folder as mame.ini
Have monitor horizontal at mo but yes if was vertical would have to twist neck to read properly, if that's what you mean
Ah yes, seems to be missing a bit for some reason. Here's rest of mame.ini:
### Windows sound options ###
audio_latency 1
# wavwrite <NULL> (not set)
### Input device options ###
mouse 0
joystick 0
lightgun 0
dual_lightgun 0
offscreen_reload 0
steadykey 0
keyboard_leds 1
led_mode ps/2
a2d_deadzone 0.300000
# ctrlr <NULL> (not set)
paddle_device keyboard
adstick_device keyboard
pedal_device keyboard
dial_device keyboard
trackball_device keyboard
lightgun_device keyboard
digital none
### Mame CORE video options ###
norotate 1
ror 0
rol 0
autoror 0
autorol 0
flipx 0
flipy 0
gamma 1.000000
brightness 1.000000
pause_brightness 0.650000
### Mame CORE vector game options ###
antialias 1
translucency 1
beam 1.000000
flicker 0.000000
intensity 1.500000
### Mame CORE sound options ###
samplerate 44100
samples 1
sound 1
volume 0
### Mame CORE misc options ###
validate 0
artwork 1
use_backdrops 1
use_overlays 1
use_bezels 1
artwork_crop 0
artwork_resolution 0
cheat 0
debug 0
# debugscript <NULL> (not set)
# playback <NULL> (not set)
# record <NULL> (not set)
log 0
oslog 0
skip_gameinfo 0
bios default
# state <NULL> (not set)
autosave 1
### Configuration options ###
readconfig 1
verbose 0