ProShow and Widescreen format?

[c_k17]

<p>I recorded a widescreen format video with my HD cam, I also created a widescreen format photo slideshow with ProShow, I rendered the photo clip in .AVI and widescreen format, but when I try to combine the rendered photo clip with the recorded video in the timeline of another video editor, the program says it can not mix widescreen video with non widescreen video.<br />What gives?<br />I first inserted the video recorded from the video camera, and then I tried to insert the photo clip but it doesn't accept it. I noticed in Windows Media Player that the video from the HD cam looks a bit more wider than the photo clip.<br />Did I do something wrong?</p>