Further tesing.
redid clean install, Latest ISO 3.1-21
before installing CT, clicked on " shell " it works
Downloaded " debian 7 " from templates,
started CT, clicked console, it works
Downloaded " Centos 6 " from templates,
Started CT, clicked console, it now says connected to CT 101, but no interaction,
Clicked reload, get same sysmbol ` in top left corner.
Looks like a template or Centos6 problem ?