Help with LCD

[teknoman2420]

sorry for not giving enough info
i am working with a PIC16F877
the config fuses are set to
HS high speed enable
code protect Disable
WDT disable
PWR enable
WRT enable
debug disable
brown out enable
LV programing disable

now for LCD
RS bit to PORTE.0
E bit to PORTC.0
RW to ground
data bus to portB bits 4 to 7
if i use Define osc 4 or Define osc 20
makes no diference works the same
but if i change the crystal to 4 mhz it works
with the first code
the bootloader will not load at 4 mhz
i must swap it to 20mhz then back to 4mhz
because my target file is for 20mhz and the pic is 20mhz
i could change the target file to 4mhz but that dosn't solve the problem
and i will learn nothing, i want to see why
and it still dosn't work with second code for the thermister

I programed my target file with the LAB-tool 48
and although i am not working PIC16F876 28 pin
i can't get any of my four 28 pin pics to work at all
when programed with LAB-tool 48 even a simple blink test
but the 877 will, i'm not sure if they got damaged
from my other programer it was putting out 16V to pin 1
when it was suposed to put out 13V to pin 1 for programming
am i right about the voltage
can this damage a pic
but i'll find out someday when i order more pics
this lab tool 48 is not the newer version or upgraded
but supports the 40 pin 877 & 28 pin 876
it also suports some of 18 series pics
& 276 other pic micros
and probly about 2000 other devices

thanks i hope that helps