Travin77,

It sounds like your PIC could be resetting due to fluctuations in your power supply.
Can you describe your power supply setup?
Does your LCD have a backlight?
What PIC are you using?
What else is the PIC driving?
If you do not have them, you can try adding decoupling and bypass capacitors close to your Vdd and Vss pins on the PIC. See my comments on this thread for reference

http://www.picbasic.co.uk/forum/showthread.php?t=3567

Good Luck,

Paul Borgmeier
Salt Lake City, Utah
USA