There is a task added to Sales Order 1. If you go to "Calendar", then "List View", you can see a list of all tasks. But if you move mouse onto the Sales Order which is related to the task, the popup window doesn't show the summary of the Sales Order 1 but show Tickets summary. This is an error.
Please see http://ustesol.com/crm6/
Log in and visit this page: http://ustesol.com/crm6/index.php?module=Calendar&view=List then move mouse to "Sales Order 1 made by Tony", you will see it shows "Tickets" rather than the summary of the Sales Order 1.