I have a particular .ppt file that causes powerpoint to crash. The file opens and then immediately prompts powerpoint to close and re-open - this error loops continuously. I have other presentations that I can open and edit without a problem. I read about a print driver issue in other posts but do not think this is related. As I said, I can open other ppt files. I also removed my standard default HP as the default printer and made adobe pdf as my default. This did not change the problem.