The latest version of Acrobat Reader is frustrating to the point where I no longer want to use it.

I'm particularly frustrated that when opening a PDF file, Acrobat decides to automatically open all of the files that I had open last time I used it, meaning I have to wait to use the file that I actually wanted to use and select it from the list of opened files. Why can't I just open the file I want to use and have it ready to go?

Another thing is that while I'm using other apps, Acrobat randomly decides to open all of the files I recently used. Why? I have auto open on start up disabled, and this happens randomly even hours after starting the computer.

And my last rant is about the new UI. Sure, it might look cool, but why can't I set up toolbars so that regular operations are there to click rather than having to hunt through menus to find them?