CARTELES DE CIRCULACION MAS PEQUEÑOS EN IGO8

Hola.
Tengo un iGo8 recientemente le he actualizado los mapas y me funciona sin ningún problema. La resolución del carsystem es 800x480 algunos carteles ocupan dmasiado. Por ejemplo, el cartel que da el nombre de la vía por la que se circula (centro, abajo) es muy alto y me tapa el icono del coche. Otro ejemplo: los carteles imitando los paneles que aparecen en la carretera (centro, arriba) son muy grandes y dejan poca visión de la ruta.   
¿Hay alguna manera de cambiar dichos tamaños? He tratado de encontrar una guía explicativa del SyS.txt y no he sido capaz de encontrarla, suponiendo que ahí esté la modificación de los tamaños.
Y es que, resulta, que estamos ante otra de las situaciones en la vida en la que el tamaño importa.
Gracias por adelantado.

fue al actualizar mapa
version igo8 8.3.5

[folders]
has_secondary_root=0

[rawdisplay]
screen_x=800
screen_y=480

[debug]
max_memory=27262976
reserve_memory=2097152

[interface]
show_exit=1

[other]
demo_enabled=0


[sound]
ding=0

[warning]
is_spoken=1
skin_audio_path="speedcam_es"
speedcam_enabled=1
speedcam_warning=1
speedcam_continuous_approach_beep_when_ tonal=0
overspeed_min_speech_repeat_delay=-0
overspeed_min_tone_repeat_delay=-0
speedcam_visualtype=2
speedcam_max_lookahead=1000
speedcam_maxdistance_from_road=30
warn_distances="140:850,130:800,120:750,110:700,100:650,90:600,80:550,70:400,60:30 0,50:250,40:150,30:100,20:80,10:60"

; S P E E D C A M - C A T : 0
[speedcam_category:0]
approach_beep_spoken_type=none
approach_beep_sound=none
overspeed_spoken_type=sound
skin_first_sound="Fixed_Camera"
skin_speed_sound_delay=100
skin_repeat_sound=none
skin_repeat_distance=none
skin_off_sound="speedcam_off"

; S P E E D C A M - C A T : 1
[speedcam_category:1]
approach_beep_spoken_type=none
approach_beep_sound=none
overspeed_spoken_type=sound
skin_first_sound="Mobile_Camera"
skin_speed_sound_delay=120
skin_repeat_sound=none
skin_repeat_distance=none
skin_off_sound="speedcam_off"

; S P E E D C A M - C A T : 2
[speedcam_category:2]
approach_beep_spoken_type=none
approach_beep_sound=none
overspeed_spoken_type=sound
skin_first_sound="Fixed_RedLight_Camera"
skin_speed_sound_delay=150
skin_repeat_sound=none
skin_repeat_distance=none
skin_off_sound="speedcam_off"

; S P E E D C A M - C A T : 3
[speedcam_category:3]
approach_beep_spoken_type=none
approach_beep_sound=none
overspeed_spoken_type=sound
skin_first_sound="Average_SpeedCam"
skin_speed_sound_delay=110
skin_repeat_sound="Average_SpeedCam"
skin_repeat_distance=250
skin_off_sound="speedcam_off"

; S P E E D C A M - C A T : 4
[speedcam_category:4]
approach_beep_spoken_type=none
approach_beep_sound=none
overspeed_spoken_type=sound
skin_first_sound="Redlight_Camera"
skin_speed_sound_delay=150
skin_repeat_sound=none
skin_repeat_distance=none
skin_off_sound="speedcam_off"

; S P E E D C A M - C A T : 6
[speedcam_category:6]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Railroad"
skin_repeat_sound=none
skin_repeat_distance=none

; S P E E D C A M - C A T : 7
[speedcam_category:7]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Bus_Line"
skin_repeat_sound=none
skin_repeat_distance=none
skin_off_sound="speedcam_off"

; S P E E D C A M - C A T : 8
[speedcam_category:8]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Dangerous_way"
skin_repeat_sound=none
skin_repeat_distance=none
skin_off_sound="speedcam_off"

; S P E E D C A M - C A T : 9
[speedcam_category:9]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="School_zone"
skin_repeat_sound=none
skin_repeat_distance=none

; S P E E D C A M - C A T : 10
[speedcam_category:10]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Town_entry_point"
skin_repeat_sound=none
skin_repeat_distance=none

; S P E E D C A M - C A T : 11
[speedcam_category:11]
approach_beep_spoken_type=none
approach_beep_sound=none
overspeed_spoken_type=sound
skin_first_sound="Redlight_and_Speed_Camera"
skin_speed_sound_delay=150
skin_repeat_sound=none
skin_repeat_distance=none
skin_off_sound="speedcam_off"

; S P E E D C A M - C A T : 12
[speedcam_category:12]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Toll_booth"
skin_repeat_sound=none
skin_repeat_distance=none

; S P E E D C A M - C A T : 13
[speedcam_category:13]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Warning_Hospital"
skin_repeat_sound=none
skin_repeat_distance=none

; S P E E D C A M - C A T : 14
[speedcam_category:14]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Warning_Firebrigade"
skin_repeat_sound=none
skin_repeat_distance=none

; S P E E D C A M - C A T : 15
[speedcam_category:15]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Congestion_charge"
skin_repeat_sound=none
skin_repeat_distance=none

; S P E E D C A M - C A T : 16
[speedcam_category:16]
approach_beep_spoken_type=none
approach_beep_sound=none
skin_first_sound="Give_Way"
skin_repeat_sound=none
skin_repeat_distance=none

; S P E E D C A M - C A T : 17
[speedcam_category:17]
approach_beep_spoken_type=none
approach_beep_sound=none
overspeed_spoken_type=sound
skin_first_sound="Fixed_Camera"
skin_speed_sound_delay=110
skin_repeat_sound=none
skin_repeat_distance=none
skin_off_sound="speedcam_off"