Running SugarCRM CE 6.0.0. with MSSQL FastStack on my PC.

Created 7 targets as a test run. Created Email campaign. Went to Send Mails - it sends one mail and then scheduler freezes on 'In progress' for hours.

With Campaign mails in the Queue Cron job runs every minute and scheduler run every 5 mins like Clockwork.

Rest of the mail in the Queue has 'Zeros' under Send Attempts.

If I select queued mails and click on Send Queued Campaign E-mails, one is sent out. Then I select them again and send and again one is sent.

I I didn't have much luck with 5.5.2 but nothing as bad as this. I have checked everything that I can think of. Have I lost the plot somewhere? Thanks for your much needed help.