Error message

 I recently upgraded my computer to Windows 7.  Since then, whenever I try to edit a Quizmaker quiz, I get the error shown in the attachment.  Previously, it would say it couldn't find the file and I would be able to browse and select the correct quiz.  Now, I have to go find the quiz in Quizmaker and publish it to my presentation.  How do I fix this problem?

Also, I have been finding that the Engage interactions, when set to 'must view all before moving forward' locks up the presentation so that even if you click on every tab, it still gives you the message that you must click on everything.  Do you think this problem is related?

Thanks for your help,

Jill