problems when inserting a new citation

My EndNote 6 has started to move all my subsequent citations after I change or insert a new one. It seems to be moving them all backwards instread of keeping the subsequent ones as they were. Is this something to do with hyperlinks?

Thanks,

Maggie

this is usually due to a corruption in one of the citations.  If you make a copy and unformat to temporary citations, are they correctly placed?  If not, I believe Tech Support has a macro they can run to correct the shift.  If they are correctly placed, you can run thru the remove field codes after converting to unformatted citations, (Shft+Ctrl+F9 or Ctl+6)  The update citations (and turn autoformatting back on if necessary).  

Thank-you Leanne. I will try that.