Please post your crash report on Pastebin.com (NOT HERE) and put a link to it here.
I take it you've already tried the fix for blank dialog crashes?
I am not sure of how to do the blank dialog box fix (am newbie to Mac), is there a simple way of doing it?
I have put my crash report up on Pastebin but how do I add the link here (sorry!)?
After you submit the report on pastebin.com you should be able to copy the address for the page from the browser address bar and just paste it here.
Directions for the balnk dialog fix are at InDesign Help | InDesign Crashes with Blank Dialog Boxes on MacOS 10.7.4
The link works, and I don't recognize it as something I've seen before for certain.
The blank dialogs fix is for 10.7.4, and you're using 10.7.5, but it probably won't hurt to give it a shot.
I had this problem occur also in CS5. I could only insert one page at a time, if I tried to insert any more than that Indesign crashed.
The document I was working on had two separate Master Pages, Master-A (a 2 page spread) and Master-B (Single page). I found that by deleting the Master-B the problem was solved, I could insert as many pages as needed.
Hope this helps.
Create a new document with the same page dimensions and margins.
In the old document use the Pages panel sub menu (top right of Panel Menu) and choose Move Pages.
Move your Pages to the New Document.
See if that fixes the issue.