Why won't my CollabNet SourceForge Enterprise virtual machine installation start?

CollabNet SourceForge Enterprise won't start, or you receive an error message when trying to access your site.

You may be encountering one of the following issues:

• The CollabNet SourceForge Enterprise application server is not running.
• Your organization has exceeded your maximum number of licensed users for the CollabNet SourceForge Enterprise download.
  • The free trial version supports up to 3 users at no charge.
  • The Team edition supports up to 25 users.

  To purchase additional licenses, visit http://www.collab.net/products/sfee/buyit.html

  .
• You are attempting to run CollabNet SourceForge Enterprise on an unsupported VMware product. The following legacy VMware product versions are not supported:
  • VMware ESX Server 2.x
  • VMware GSX Server 3.x
  • VMware ACE 1.x
  • VMware Workstation 4.x

  For more information about VMware Player and similar products, see http://www.vmware.com/products/player/