It does not appear in the Project panel, only the Menu panel.  There is nothing attached to it like chapters, links, etc.  Weird.  Well I just tried burning a DVD with my slideshows and I got an "Invalid Streams" error or something like that.  Not sure if that was caused by the menu or not.

No, that's what I'm saying, it's there but I can't delete it no matter what I do.

I'm also getting a "Stream type is invalid" during the build process.  This is during the "Building slideshows..." procedure of the build process.

I'm not sure if these two things are related - I'm guessing they are not given this is my first slideshow that I'm trying to do with Encore CS4.  I need to understand both of these issues.

OK, did a save-as.  Opened the Menu panel and the only menu there was my working one.  Did Build to Folder, view errors and whala, Error came up and said that it couldn't find Party Menu HD.psd and it would create a placeholder for it.  After clicking OK, I was returned to the Check Project window.  Party Menu HD shows as being an "Orphaned Menu" as before.

Is there a cache or preferences file I can delete like you can do when Premiere or Dreamweaver takes a dump? 

Well as with every project that's been created with an Adobe product, if you don't get the results you need, delete it all and start over.  That's what I did and it works fine now.  Oh ya there are still glitches like delete a slide in a show and Encore just closes without warning, but hey, it wouldn't be Adobe if it didn't do that!

I like the slideshow capability of Encore but I can quickly see that it was an after thought.  I really hope they clean it up in the future and continue to support it.  I'd love to see it integrated in to Premiere somehow, but then again, I can't image having to deal with both of those buggy apps at the same time.

Thanks for your help.