Aw, I'm sorry! I know how frustrating that can be, as Pixel had MANY regressions before finally getting it (and I say that with a knock on wood LOL).
I wish I knew the magic words to help you, but I'm not even sure what finally made it click for Pixel.
I do have a question for you sherile47 though. What are the adjustable window screens you referred to? Do you have a link you can show me? I just searched at Wal-Mart's website and can't find them.