CorelDraw X7 Saving issues

just upgraded to corel x7 and I keep getting this message every time I save manually.  

*.cdr was modified by another user since you opened the file.  To prevent losing your changes, please save the file with a new name (File>Save As). 

I don't want to keep saving files with a different name every time I manually save.  Any ideas how to fix?  Is anyone else experiencing this issue?