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Dear SPM List

I have 10 models and I estimated the parameters using spm_dcm_estimate from
the previous version (not from the 4667 update).  All the estimated
parameters were close to the actual values of the parameters
When I used the same models after applying the 4667 update I got weird
estimated values for 5 models.  2 of the models did not converge and 3 of
the models converged very late.  What is reason for this happening and if
this happens should I use the 4667 update or go back to the previous
version from April 2011.

Thank you

Mobin