A couple of our customers have run into a situation where the new font-based glyph icons that we're using in Spira 5.0 don't display. This is usually due to a configuration issue within IE itself, this article provides the recommended solution.
If you don't have some of the standard Window fonts installed (e.g. Courier New), when you try and launch Rapise, it will fail to open correctly. This article provides information on the problem and solution.