Are you sure they're not corrupted files? Clarify further your current settings if you can.
It was the software and it needed a new patch. After downloading updated patch it worked just fine.
Anyway, thanks for responding.
At first we thought maybe the program was corrupted but the customer said it worked a few days ago but she had used it for many months. It's then we suspected there may have to be a patch that matches the latest, automatically downloaded Microsoft Windows patch that comes in once a week.
Usually Microsoft downloads patch in background and all third party programs are just fine. But sometimes the Microsoft patch conflicts with software and this can often happen with a full on Microsoft Service Pack update for Windows. It's part of what gives the company a bad name yet pays handsomely for techs in the field that deal with installation and making software patches.
As much as I complain about Windows, and have suffered through (and got paid for) working through Bill Gates' programs, the latest versions of Windows are more stable than the last couple of incarnations of OSX. This is a first but low quality programming and bugs were doomed to happen to Apple when OSX became as huge as Windows and that the Cupertino company's attentions got focused much more on iPhone.
When people ask what computer to get, these days the answer is "anything you like". Windows messing up existing programs is not an issue that happens nearly as much as it once did.