[Ifeffit] error while running FEFF6l through SixPack

I'm a new user trying to use FEFF6l through the "Make FEFF SS Paths" module in SixPack. I downloaded iffefit-1.2.10.exe and installed everything to default locations (which puts a copy of feff6l.exe inside the fefftemp folder of Sixpack, where I am told it needs to be). I open the "Make FEFF SS Paths" module, enter scattering information and go to run FEFF. I select FEFF6/7 and enter "feff6l" next to FEFF Command (without quotes). I hit Run FEFF - then I get an error: ----- Error: 3 IOError Exception in Tk callback Function: (type: ) Args: () Traceback (innermost last): File " Pmw.pyc", line 1772, in __call__ None File "<string>", line 308, in runfeff None IOError: [Errno 2] No such file or directory: 'feff0001.dat' http://cars9.uchicago.edu/%7Eifeffit/src/ifeffit-1.2.10.exe ----- I'm running Windows XP through Parallels on an Intel Mac (running Leopard). Other modules of SixPack are running fine. I tried updating SixPack from the SixPack website (as was suggested in the ifeffit install documentation). Does anyone have any ideas? Thank you!! Susan