Sorry, I'll fill in some of the gaps.

I'm using a PIC16F88

ADval, ADval1 and ADval2 are defined as WORD.

I did not try another channel, and I did not use a resistor.

I can try another channel, but that seems unlikely to be my problem. I'm not using a resistor on my other input even though the battery its connected to is capable of pumping out a lot of current.

Thanks,

Jeff