GMM/Bayes toolbox

I've been having some problems running my GMMs with new data I'm working with. Actually, the data is that which includes the fix I made to the delta-coefficients I referred to in previous posts. I came across this toolbox today which I will try to run tomorrow:

GMMBAYES - Bayesian Classifier and Gaussian Mixture Model ToolBox

This toolbox includes a fix which forces a matrix to be a valid covariance matrix - exactly the problem I've been trying to fix!!

File name: gmmb_covfixer.m
%
% covmatrix = GMMB_COVFIXER(matrix)
% Matrix is forced (complex conjugate) symmetric,
% positive definite and its diagonal real valued.
%