Strange things that happen in Storyline

I noticed a few strange things that happen and since it is sort of tedious to make sure it doesn't happen and mess up my project, I thought I'd post it here so other people can be on the look out. OR maybe the e-Learning heros have a solution.

I set all my screens to navigate to specific pages instead of just the next slide. Partly because I created slides out of order based on SME feedback and partly because I had to branch some screens with triggers and such. I then decided that because I had to branch the screens and had several layers, using the Previous button wouldn't function correctly so I pretty much unselected this on EVERY one of my 95 slides (TEDIOUS). But what I noticed was that when I uncheck the Prev box in the Slide properties, it changed the navigation for my NEXT button to Next Slide, instead of the slide I had it pointing to. WHY did it do that?  I don't really understand how the Previous button is connected to a trigger on the NEXT button. 

Also, and I could be imagining this but I don't really think so, I had to go through and manually set the seekbar on specific slides with audio. I could have sworn that there were a couple times when all I did was set manual player features and the NAVIGATION changed for the slide, I think it defaulted the Next button back to going to the next slide instead of the one I set (AGAIN).

Finally, and I can't figure this one out for the life of me, my final slide is a results slide. I removed the Next button because the user is just supposed to close the window BUT for some reason, the storyview is showing that the slide will navigate to the NEXT slide which is three slides previous. Of course, it can't navigate there without a Next button but why does it show that when there isn't a trigger to navigate it? Why doesn't it just show the little chain or lock icon that it usually shows at the end of a scene if it's not set to go anywhere? I've looked everywhere I can think of and can't find a place to change the navigation for that slide.

With all that said, I still LOVE Storyline and feel it's the best program around for e-learning. Plus I love the forum and how quickly you all answer my silly questions. I just wonder if I'm alone in these weird experiences or if anyone else has had this happen. Or maybe I shouldn't be so picky about the navigation buttons and such.