Office 2007 symbols not appearing correctly

Hello,

I have a strange issue with Word 2007. I have a user who has issues when viewing a Word document, some symbols appear as white boxes. I had her send the document to myself and when I opened the document, all of the symbols appeared correctly.

When she views the document and prints it, the boxes are printed instead of the symbol. When I view the document(correctly), the symbols are printed just fine.

I have tried running a repair on her Office products and uninstalled/reinstalled as well. Same results.

She uses Windows XP Pro 32bit, Office 2007 Standard
I use Windows 7 Pro 64bit, Office 2007 Standard

Thanks in advance.