Hi, I came across some problems with my SSD1306 displays: 
  
1. Using big fonts in conjunction with the txt56 syntax doesn´t work completely yet. I wasn´t able to test this thoroughly until now, sorry, otherwise I would have reported this earlier. 
When I initialize my box (with mackie emulation) the tracks host message is fine like this: 
  
 
 
But when the text on the second line changes the first character still gets cut off:
 
 
  
It seems, that the first character on the second line