Please note that these drivers are for the LCD display only, NOT the VFD display, so if you had the 'old one' working, I assume you mean you were using the old VFD drivers successfully.I've got the same problem Drudixx has. The old one are working at least flawless with the new imon software version. When i select the new ones (does not matter if text or graphic mode) it just displays nothing.
No big thing, i'm using the old one again.
For the other folks who would like some enhancements (standby/contrast/backlight etc), for the moment, sorry, but I am unable to get around to these in a hurry. But with the source code and limited API published, I am sure that there are others out there who are able to make the changes.
Once again the problem was behind the eyes and between the ears
I didn't notice that these are 2 different displays.