I found this discussion - http://www.pfaff-talk.net/chatroom/mvnforum/viewthread?thread=8872 that indicates it could be the program is not compatible with W7.
Using an older Windows program may be the answer.
I am keeping an old PC with XP for just that reason.
Search the Yahoo groups for a Pfaff discussion group as they may have more info.
Answers & Comments
I found this discussion - http://www.pfaff-talk.net/chatroom/mvnforum/viewthread?thread=8872 that indicates it could be the program is not compatible with W7.
Using an older Windows program may be the answer.
I am keeping an old PC with XP for just that reason.
Search the Yahoo groups for a Pfaff discussion group as they may have more info.