Just wanted to see if others were having this problem. Ultimately, the problem is solvable, but it's a hassle. Here's the deal. With Powerpoint vX and Jag, I was able to incorporate pictures from the Internet (gifs, jpgs, etc.) and the files will work fine on a Windows PC. However, since upgrading to Tiger and Office 2004 at the same time, I found out that graphics imported into Powerpoint 2004 will not be displayed correctly on Windows Powerpoint. On Windows, the placeholder for the graphic is there, however instead of the picture, there's a message saying that a Quicktime or TIFF converter is required. I'm thinking this has something to do with QT7. The solution was to either convert the images to "Microsoft Office Format" or to re-do the slides on a PC. Converting the images makes the file size jump BIG TIME. So I went with re-doing the slides on a PC. So for the Mac users who need to share Office files with Windows users, keep this in mind before you send files to your colleagues, clients, etc. Also, I'm thinking this problem would show up on Excel and Word as well, but I haven't tried it. Hope this helps.