Button Actions Help needed

I have created a CBT with a "download" button that works fine to open the file that I have directed it to. There is also a button on the same screen to "continue" the course after the download has completed. This works well in the Preview, but when I load to LMS I can either click the Download button, or i can click the Continue Button. If I click the download button and get the doc that is linked to it, the screen freezes and the Contine button does not work. If I only click the continue button, it will go to the next screen, but then I won't get the attached document. I am not an expert on Captivate. Is there a way to make this work?