I've installed/re-installed 1.8.0 on two different windows PC's (OS XP 2002 SP 2 or 3) and both are unable to execute standard electrical models because of the error shown below.  I've checked that gcc can be found from the command shell, and this is ok.  I've checked that an installation of 1.6.0 works, and this works fine.  Any clues?
thanks, Craig


Translation    12:09:41        0:0-0:0    Error building simulator. Buildlog: The system cannot find the path specified.
gcc  -O3 -falign-functions -msse2 -mfpmath=sse   -I"C:/OpenModelica1.8.0//include/omc" -I. -L"C:/OpenModelica1.8.0/lib/omlibrary/Modelica 3.1/Electrical"   -c -o Modelica.Electrical.Machines.Examples.DCPM_Start.o Modelica.Electrical.Machines.Examples.DCPM_Start.c
'gcc' is not recognized as an internal or external command,
operable program or batch file.
\MinGW\bin\mingw32-make: *** [Modelica.Electrical.Machines.Examples.DCPM_Start.o] Error 1