Endnote X6 Word 2010 force close when choosing Author (Year) instead of (Author, Year)


It’s rather bothering me every time I insert a citation in word 2010 and choose to display it in Author (Year) form, 

then I try to save the doc file only lead word 2010 to force close. If i use (Author, Year) format as default, everything is fine.

Hope someone could help with this. Thanks!