'************************************************* *******************************
IdleLoop:
I2CWRITE PORTC.1, PORTC.0,$78,[$00, $39,$14,$79]
pause 250
goto Idleloop
end[/CODE]

With this line is nothing on display. One time appeared undefinited characters, who move to right one by one.

Identically, in this case I run initially Vcc at 3,6V and after few seconds I changed to 5v.