VMWare Fusion 4: Unable to Add Hard Disk

After removing the original hard disk from an existing Virtual Machine, I was unable to re-add the existing hard disk back to the same Virtual Machine.  I went through the proper procedure but the apply button did not work.  When selecting "Show All" to go back, I was then asked if I wanted to add the device.  Naturally, I said yes, but that did not work either.  There was no errors or indication why this would not work.

I did manage to get it working by manually editing the  vmx file.

Step 1
Power off the virtual machine and remove from the library.

Step 2
Change the following:
scsi0:0.present = "FALSE"
to
scsi0:0.present = "TRUE"

Add the following line:
scsi0:0.fileName = "{Name of VMDK}.vmdk"

Step 3
Add the virtual machine back to the library and review settings to see if the change worked.

Sstep 4
Power up and enjoy!