This is what fixed it:

Code:

HSERIN 1000, mainloop, [rx]if rx = 120 then  HSerOUT [" Ca Mode Activated", 13, 10, 10,10,10,10]  RCSTA.4 = 0  RCSTA.4 = 1  RCSTA.4 = 0  RCSTA.4 = 1  goto menueendifpause 5000senres = 0calcon = 0sernum = 0mainloop:read 40, long sernum 
read 20, long calcon
read 0, long senres
inloop:toggle PORTC.1 'Pin 9 yellow LEDpause 499ADCIN 3,b10                              'Read sensor on pin 3 ADC3b1=b2: b2=b3: b3=b4: b4=b5: b5=b6: b6=b7: b7=b8: b8=b9: b9=b10bf=(b10+b9+b8+b7+b6+b5+b4+b3+b2+b1)/10   'avaragemVS = (bf/4095)*5                        'convert to PPMES = mVSPause 500'sample #, raw temperture, temp degrees C, on time, offtime, sensor, boxcar sensor, PPM HSerOUT [dec sernum, " ", dec ET, " ", dec ES, 13, 10]pause 1000GoTo inloop
who the hell knows why....