I've built my first WP site for a client (using Woothemes Canvas); it's just a set of static pages. The issue is that when navigating through the site, the custom navigation bar refreshes, showing a grey bar with id 'navigation' before loading fully. This doesn't happen in Firefox btw.
Apologies if this is a Canvas issue, but if it's something you've come across before, any pointers would be gratefully received.
All the best