MINYANVILLE ORIGINAL Apple (AAPL) sank 4.5% and is now down for six successive weeks. The Cupertino company clearly suffered a Halloween horror show last week although help may be at hand from one of the Munsters. Microsoft (MSFT) and Nokia (NOK) each launched sexy new smartphones but neither proved as popular as antique payphones.   It was a long day at Knight Capital (KCG) where the knives were again out and Groupon (GRPN) continued to speak with forked tongues falling 14.3% after announcing an extraordinarily ill-timed Dinner in the Dark.   Today in economics October’s Institute for Supply Management services index is out at 10:00 a.m. Eastern. On the corporate ...