Here is something else to try:
"We found another thread on ServerFault reporting a similar problem ("Typically it crashes when you click File/Open or File/Save, but not every time"). Another user (PG) was able to resolve the problem by excluding the application from Data Execution Prevention, on Microsoft's recommendation.
We checked the Data Execution Prevention setting and found that it was set to "Turn on DEP for all programs and services except those I select." After changing it to "Turn on DEP for essential Windows programs and services only", the problem no longer occurs."
http://www.softwareok.com/?seite=faq-Windows-8&faq=145