Please help with EDE702 - Serial to LCD interface

[skimask]

'*****************************************************************
' Using PortB.2 to serially transfer data to EDE702
' PortB.2 going to EDE702's RCV port (pin 17)
' LCD connected to EDE702
' Internal OSC used for 16F628A
' 4 MHZ cristal used for EDE702
'*****************************************************************
@ DEVICE PIC16F628A, INTRC_OSC_NOCLKOUT, WDT_OFF, LVP_OFF, PWRT_OFF, PROTECT_OFF, BOD_OFF

Use an external crystal and see what happens.
And if you don't have one, since you DO have an o-scope, might want to change the program, make it change the portb.2 line at a known rate, check it with the o-scope and see how far off (if any) your internal oscillator is.
Also, check Appendix A of your PBP manual. 9600 baud at 4mhz is a bit iffy. Try 2400 baud, try a higher clock, try using the hardware UART, try anything.