I've just installed Code Snippets for the first time (on WordPress 3.5.2), and then I've gone to the "Add New" page to add a new snippet.
The layout of this page seems all messed up - have a look at this screenshot:
The white panel underneath the label "code" can't be typed into - it won't let me place my mouse cursor in there (ie. it's not a text panel). Likewise with the grey panel beneath that - I can't type into there. In fact the only area I can type into is the title at the top.
Any ideas what is going wrong?