disconnected clusters from MCL

Our MCL clusters at high I-values give genes in clusters with disconnected nodes. This is a problem has been discussed before:

http://larsjuhljensen.wordpress.com/2010/03/01/analysis-markov-clustering-and-the-case-of-the-unnatural-clusters/

According to the post, this is not an "error", but a possible though "unexpected" result. Looks like "--force-connected=y" option might solve this problem. I will redo the clustering and then check.