I also have this problem. It seems to scan the documents, but then when it gets to the "save file/add a page/edit" option at the end, it freezes. A small dialogue box with no text opens and either repeatedly closes and opens or constantly refreshes (I can't tell which) and that's it. No further progress happens.
Reading earlier in this thread, I tried running as admin, and setting compatibility for XP SP 3. Doing BOTH seems to work for me.