ATN Pushback Gauge Not Appearing -- FSX Windows 10

I have the amazing ATN gauge V1.2 (atngau12_148688.zip) by Etienne Martin added to my FSX on my Windows 10 system, with all installation instructions having been followed, including placing the important MSVCR71.dll file in the Windows>System32 folder that the gauge needs to run properly as well as the gauge file itself in the FSX > Gauges default folder.

This gauge is also installed on my Windows 7 PC on FSX, where it works absolutely fine, but since switching to Windows 10, the gauge doesn't show up at all. I've tried to copy paste the exact gauge coordinates in the panel.cfg folder of my FSX aircraft from Windows 7 to Windows 10, and still the gauge refuses to show up. All other default gauges are showing up as normal. I can even see that FSX recognizes my panel entry in the Instruments > Pushback toggle bar, but the gauge itself won't display.

I understand that this is a FS2004 file as well, but it was working perfectly fine with FSX too on my Win7 system for 3 years as previously mentioned.

This is an example of the panel.cfg entry in my default B737-800 of this gauge under the necessary sections as instructed in the installation file:

[Window Titles]
window00=Main Panel
window01=Radio Stack
Window02=GPS
Window03=Throttle Panel
Window04=Overhead Panel
Window05=Autopilot
Window06=PFD
Window07=MFD
Window08=EICAS
Window09=Mini Panel
Window10=Pushback

[Window00]
file_1024=737-800_panel_background.bmp
file_1024_night=737-800_panel_background_night.bmp
size_mm=1024
position=7
visible=1
ident=MAIN_PANEL

gauge00=B737_800!pfd_screen,                    189,548
gauge01=B737_800!pfd,                           210,567,179,179
gauge02=B737_800!mfd_screen,                    409,548
gauge03=B737_800!mfd,                               430,567,179,179
gauge04=B737_800!eicas_screen,                  740,548
gauge05=B737_800!eicas,                         760,565,179,179
gauge06=B737_800!compass,                         839, 39
gauge07=B737_800!autopilot,                     561,330
gauge08=B737_800!knob_1,                        329,501
gauge09=B737_800!knob_2,                        390,501
gauge10=B737_800!knob_3,                        830,480
gauge11=B737_800!clock,                          77,570
gauge12=B737_800!attitude_backup,               630,444
gauge13=B737_800!adf_vor_backup,                  630,662
gauge14=B737_800!alti_and_asi_backup,             631,555
gauge15=B737_800!gear_lever,                      959,524
gauge16=B737_800!annunciator_below_glideslope,  214,517
gauge17=B737_800!annunciator_le_flaps,          854,516
gauge18=B737_800!annunciator_speed_brake_armed, 516,516
gauge19=B737_800!annunciator_auto_brake_disarm, 823,441
gauge20=B737_800!annunciator_anti_skid_inop,    812,517
gauge21=B737_800!efis_control_panel,             416,344
gauge22=B737_800!flap_indicator,                 892,452
gauge23=B737_800!annunciator_panel_1,              267,361
gauge24=B737_800!annunciator_panel_gear,         958,454
gauge25=B737_800!Knob_N1_Set,                   755,454
gauge26=SimIcons1024!ECU Icon,                     433, 448
gauge27=SimIcons1024!Overhead Icon,             455, 448
gauge28=SimIcons1024!Kneeboard Icon,             477, 448
gauge29=SimIcons1024!ATC Icon,                   499, 448
gauge30=SimIcons1024!Map Icon,                   521, 448
gauge31=SimIcons1024!GPS Icon,                   543, 448
gauge32=SimIcons1024!Radio Icon,                 565, 448
gauge33=SimIcons1024!Other Controls Icon,         587, 448
gauge34=n_number_plaque!n_number_plaque,                95,731,67,19
gauge35=Atn!Toggle ,0,0,1,1,15123

[Window10]
position=3
BACKGROUND_COLOR=0,0,0
size_mm=300,192
window_size=300,192
visible=0
sizeable=1
ident=15123
gauge00=Atn!Pushback,0,0,300,80,15123
gauge01=Atn!Scale,0,80,300,56
gauge02=Atn!Electric,0,136,300,56

I'm confused as to why the gauge won't display on my Windows 10 installation, considering I've installed it exactly as it was previously. Any help whatsoever regarding why this is happening would be greatly appreciated!