AutoCAD Inventor :: Drawing File Crashes

This morning I got to work and attempted to modify an existing drawing file per some requested changes. I figured I would open the drawing file and move some of the things around that I needed but were going to disappear after I edited the model. The end result was to remove some small items from the model and add two other small items to the model. There was some annotation in the drawing connected to the parts I was removing that I wanted to stay in the drawing file so I was editing the drawing file first. This is what happened and what I have tried since:

1.) When I went to copy a weld symbol from one view and paste it in another IV crashed.

2.) I rebooted, attempted again, IV crashed.

3.) I rebooted, attempted to add a new weld symbol and delete the other (instead of copy/paste), IV crashed.

4.) I installed the windows updates my computer was telling me I needed to install (.NET 4.5.1).

5.) I rebooted, attempted again, IV crashed.

6.) I attempted to add a weld symbol to a different drawings in a different project, success.

7.) I attempted to add a weld symbol to a different drawing file in the same project, success.

8.) I attempted the original process again, IV crashed.

9.) I attempted to open the assembly file referenced by the drawing file, success.

10.) I attempted to open a drawing file that references the same model file as well as others in a larger assembly, success.

11.) I removed parts from the assembly file that were no longer needed in the design, success.

12.) I attempted to open the original problematic drawing file, IV crashed.

13.) I attempted to open it again, IV crashed.

14.) I used pack-n-go to consolidate all of the files to upload for my support request.

15.) I attempted to open the pack-n-go drawing file on my laptop.... IT OPENED.

Now, every time I attempt to open the original drawing file on my workstation, IV immediately crashes. When I open the PNG drawing file on my laptop it works. What should my next step be?

I am afraid to go any further because this drawing file is very much needed, and so large and complicated that I do not want to just create the file again (6 sheets detailing a large tank). I also don't want to start copying and pasting the file that does work on my laptop and screw something up with the files on my workstation. And of course, this tank is scheduled to start fabrication today.
 
Inventor Professional 2013 (SP-2.3), Product Design Suite Ultimate
Desktop: Intel Core i7 3.4GHz, 16.0 GB RAM, Windows 7 Ultimate SP-1, 64-bit OS, (2) GeForce GTX 580 (331.81), Space Pilot Pro (3.16.1)
Laptop: Intel Core i7 3.9GHz, 16.0 GB RAM, Windows 7 Pro SP-1, 64-bit OS, GeForce GTX 780 (331.81), SpaceNavigator (3.17.7)