Much depends on much.
What are you using for your source footage? If photos, have you ensured that your photos are no larger than 1000x750 pixels, per my book and our forum recommendations?
What are your project settings, as listed under the Edit menu?
Finally, check out this article on why DVD vs. photo resolution.
The problem isn't just that the resolution isn't as good as the source materials. It is totally out of focus and looks like a 3-D picture before you put on the glasses. My premiere 9 worked beautifully but version 11 is awful. I am still using the same input as I did with version 9, which is mostly photos with some video. As a matter of fact, most of it is Photoshop elements projects, which should work well with Premiere.
My project settings: editing mode -- HD 1080i (the default, I think)
video frame size 1920x1080
What other settings are you're looking for?
For the project I've just been working on, I ended up doing it in Windows movie maker, and I got fine results with much less effort.
I'm about to shop for another video editor. But I like the richness of options offered by Premiere and its link with elements, so would prefer to stick with it.
Okay. But if you decide to come back to Premiere Elements, we'll be glad to guide you through the process.
Meantime, if you're just looking for a terrific, easy to use slideshow maker, check out Pro Show Gold.