SOE has release The War of Zek onto the realms of EverQuest II. This is an extremely large update touching almost every aspect of the game. You can read the entire patch notes
to find out all that has been changed.
This update has brought some changes to the default interface. Including changes to the eq2ui_mainhud.xml. If you have a custom eq2ui_mainhud.xml you'll need to update it otherwise the new video capture window will be blank for you.
Check out the compare I have posted
between the pre gu61 and post gu61 default interface xml.
I ask that every one be patient and give interface authors some time to update their code.
GU61 Patch Notes
GU61 XML Compare