DB Upgrade 0.9.5 -> 1.0.2

[IGotNothin]

I'm trying to upgrade from 0.9.5 to 1.0.2.  On step three of the installer, everything shows ok except the database schema.  When I select to upgrade from 0.9 or newer and click upgrade, the browser just spins and spins and nothing ever happens.  No errors, no database upgrade, just hangs.

This is on a windows 2012 server with php 5.5 and mysql.  Any ideas what might cause this to fail or hang?

Thanks!