Pop Up Calendar on filter for Report Writer wrong format

[AOR]

Hi,__Hope someone can help me, we are running an old version of Report Writer (Version 11). __When we run one of our report and use the filter with dates between, there is a inbuilt popup calendar that allow you to choose the dates to and from. Now this is in American format e.g. 12/25/2013 and it need to be 25/12/2013 (UK format). __What can be done to resolve this as with this format the report does not run and you have to manually enter the date in the correct format.__The Report Writer software sits on our servers (Windows server 2008)and is accessed via a mapped drive from the client machines. We are using it through out CRM Progress.__Is there a way of changing this? many thanks in advanced.__Oh just to mention I^m in the UK.