PIC to MATLAB interface via serial port

Hi Am trying to send data from PIC16F877A to PC via serial port.

To read the data fro the serail port using matLab i have done the following code.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
v=instrfind
fclose(v);
clc;
clear;
clc;
s = serial('COM1');
s.InputBuffersize=500;
s.BaudRate=9600;
fopen(s);
set(s,'Parity','mark','DataBits',8);
out=fread(s,2,'uint8');
save MyObject s;
load MyObject s;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

But thevariable 'out' is getting different values during each time i run the code eventhough am sending only one value. WHY??

Also am getting only a matrix of decimal value and not Binary...

PLS HELP ME!!

This is really urgent for our project....

What is your compiler?
Did you check it in Proteus?
May be I will help you in MikroC Pro if you deal with it