Some users have reported problems trying to download TaxCalc, with the following errors.
Users with Internet Explorer may get:
This page can't be displayed.
Those with Firefox get:
An error occurred during a connection to www.taxcalc.com.
This error is likely related to the use of a third party firewall such as Zone Alarm. To be able to download the file from the website, temporarily disable the firewall, restart the browser and try to download the file again.
This behaviour may be avoided in the future by making sure that downloads from TaxCalc are not blocked by your firewall rules.