Startup delay wrong for 8bit AVR core ...

[PICboy]

In LiquidCrystal.cpp at line 107, there is delayMicroseconds(50000); startup delay of 50ms.
Because maximum value that function delayMicroseconds() can handle is 16383, instead of 50mS you got only around 2mS delay.
Make this delay in form of:
for(unsigned char i=0;i<5;i++)
delayMicroseconds(10000);
Best regards from Republic of Serbia.