It's the fancy stuff that always makes it hard to use great tools. I, too, spent QUITE a bit of time because the big X button simply wasn't being displayed to me. There can be a lot of simmering style, compatibility, etc. issues just simmering under the hood on anyone's — no, everyone's web sites. The only thing constant about these issues is that they are NOT constant. I remind my clients and developers, gently, that every time you turn on your device it could be different.
Cross device compatibility isn't going to get any better, in fact with smart phones and HTML5 it seems like more rather than less compatibility issues will arise. If someone tells you something is broken, developers need to listen (and ask for a screen print!).