Hi kamoj,
yes, there's a difference between the old MAME versions 0.175/0.220 for CB-Emu/MessExtra and MessNew:
The 'led7seg' used in MAME consist of 7 digit segment plus a "." at the right bottom corner, but there's no ":" between any digits - this ":" is an additional element that has to be created in the layout and addressed by the driver.
The old MAME versions just didn't have this ":" and used the '.' after the 4th digit instead of it.
Anytime in the past 'hap' added a new display driver (mmdisplay1.h/cpp) for some Mephisto devices that fixed this issue, but this driver didn't work anymore in MAME 0.175 or 0.220, so I've just let these old LCDs as they are - not really a big problem in my opinion.

Regards,
Franz

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