got the following error message after mxRun():
Error in runHelper(model, frontendStart, intervals, silent, suppressWarnings, :
BLAS/LAPACK routine 'DPOTRF' gave error code -4
to save y'all some time, turns out that i was running an old script that had an MxAlgebra object with the expression ".5 * VA" where VA was a matrix. to fix it, i just had to change this to ".5 %x% VA."
suggest you trap the DPOTRF error and return a more intelligible error message.