CSP parabolic trough HTF issues

Dear Sir
I updated 2013 version of SAM to the latest version 2014.1.14 in june.
I am experiencing simulation fails while modelling CSP parabolic trough powerplant using Therminol 66 as HTF.
I've tried to input the Therminol 66 data as user-defined HTF but It doesn't works.
Other HTF as Diatherm Q or Therminol VP1 are perfectly working.

The error message reports the following:
MSG[0]: SVAL LOOKUP ERROR trnsys.user_trdsrc

Best regards
Nicola Puma

Dear Paul
thank you for your kind answer.
I dont think this is the problem.
I've checked the HTF temperature range, having its max at 339°C,
while Therminol 66 is supposed to operate at 345°C (listed using Dowtherm Q as HTF).
The warning occurs within 2-3 seconds from simulation start (5%).
Dowtherm Q performs the entire simulation even if giving a warning notice (trnsys.dtr: WARNING: The temperature for DowTherm Q was outside of the fluid's operating range of -35.- 330. [C] for at least 50 time steps. The fluid temperature on the 50th occurrence was 339.0 [C] at timestep 4447.0. Try changing the design parameters or fluid to ensure operating temperatures stay within the range).
Our target is to run simulations with HTF temperature around 440°C,
so I'll use Therminol VP1 even if this oil isn't the same of 66.
Thank you for your time.
Best regards
Nicola

Dear Paul
I've checked the 339°C using Dowtherm Q as HTF. (clearly the simulation results in a warning for temperature out of range)
Using Dowtherm Q the simulation works properly, even if Dowtherm Q has a lower value for maximum temperature .
Therminol 66 is supposed to reach 345°C as working temperature, so it seems to be into the design temperature range.
Thank you for your time.
Nicola