hi, sorry for the late reply. I am just beginning to watch a bit regularly this forum and I just saw your message:
1) dowload the latest version of the toolbox at:
http://eemc.jrc.ec.europa.eu/softwareDYNARE.htm
please note that now the official dynare parser recognizes dynare_sensitivity, so the syntax is now changed and is more transparent.
have a look at the documentation
http://eemc.jrc.ec.europa.eu/EEMCArchive/Software/DynareCourse/GSA_manual.pdf
Moreover, the options are NON STICKY now, i.e. at every dynare_sensitivity call you need to re-entroduce any non-default option you may have selected previously.
2) I tried to run your file, and there are problems with the stedy state. i.e. when doing the monte carlo stability analysis the toolbox tries to solve the model, but solve always reaches the max number of iterations. You may have to supply more info do dynare about the steady state of the model.
I hope this helps
best wishes
Marco