Hi smapson,
I had a question about the setup you are running here. There is only one wire connecting your sensor and the A10? If it is referencing to ground, there has to be a common ground reference between the two. Otherwise, you have to have some other wire to reference the voltage to.
In general, the RTD01 is the best module to be using for thermistors. The A10 is more for measuring larger voltages that need to be scaled down(up to 100V input).
-Matthew S.
-National Instruments
LabVIEW Integration Engineer with experience in LabVIEW Real-Time, LabVIEW FPGA, DAQ, Machine Vision, as well as C/C++. CLAD, working on CLD and CLA.