[Ifeffit] Problem with new ifeffit version

Dear Matt, Bruce and Sam, I just installed the new ifeffit 1.2.11 version (including) update von my windows pc (OS windows xp). The program works fine so far, but when I want to open or save a file, project or xmu the program just ends (without any error message). The only way to use data is by loading recent files. Am I the only one with this problem? Thanks for your help, Lisa