Need help trying to save a word 2007 document. Am running Windows Vista. I have been working on this document for the past couple of days, a high school maths investigation with lots of equations and graphs copied over from 'Autograph' a 3d graphing software. I have been able to save it with ease with all this stuff on it until an hour ago. When I press CTRL+S it opens up the save as box (even though i've already saved it before). Then when i press save in this dialog box the box closes for a half a second before opening again without me pressing anything. I do it again and again and notice the little loading bar that tells you it's saving in the bottom right hand corner of the document gets stuck and then stops when the box opens up again. I've tried to rename it and this doesn't work. i copied it into an old word document and then saved that document and that document wouldn't save either. i got rid of it off that document and the old document saved perfectly. I closed it just to check it was actually not saving and it isn't. Is there something wrong with my document? or is it word? please help!