Smartform can not open text - word 64 bit

Dear gurus,

My SAP GUI is 740 patch 6 and Office 2010 64 bit. When I open 1 text in Smartform, error happens.

Error message: "the macro cannot be found or has been disable because of your Macro security setting". And SAP cant work.

I am sending error screen in attached file.

I wonder any configuration must do to fix this error because some information I know that SAP GUI 740 can support office 64 bit.

Please advice me either do something to use or I must install office 32 bit.

Thanks and Best regards.