Hi,
I'm using ACADM 2015. I'm having trouble doing anything in one of my drawings. I can open it up and move around the model space, select objects, and look attheir properties, but as soon as I try to change anything (ie. - draw lines, insert, delete, copy/paste to another drawing) ACAD freezes and becomes nonresponsive. I can and have used PURGE and AUDIT without ACAD freezing, but I can't seem to be able to fix my problem. all my other drawings are working perfectly. I hope someone can help this has been really frustrating. I'll attach my drawing if anyone wants to take a look.
![Autodesk Design & Make Report](https://forums.autodesk.com/t5/image/serverpage/image-id/1350519iCB55845EBFC43016/image-size/large?v=v2&px=999" "Autodesk Design & Make Report")
