You have to change the settings in the Outlook preferences and set the security to a lower setting , right now the setting is too high. Outlook is mainly geared towards buisness users and as such the default settings are high so that workers can't just open any e-mail and mess up the infrastructure of the companies network. For home use the settings can be lowered because there is only the user that is opening e-mails.
Thanks for that. The problem was caused by broken hyperlinks in Outlook caused by a microsoft download and update.
Apparently this is a known problem and Microsoft have come up with an automatic "Fix It" to solve the problem by automatically changing the comuter settings.