After installing patch 7405 on 188.8.131.52 - I am no longer able to view customers orders.
If i go to Sales -> Orders and click on an order all I see is the text "Information" and nothing else on the page.
If I attempt to view Sales -> Invoices or Sales -> Credits I see the following error in the "Shipping and Tracking Information"
Parse error: syntax error, unexpected '[' in /app/code/core/Mage/Adminhtml/Helper/Sales.php on line 124
For anyone who finds this thread:
Found a temp solution from here:
Thank you to Peter Boulderstone
Search for "$links = ;" change to "$links = array();"